After my response to Jon Toigo on Drunken Data
withmy post [Elevenanswers about Deduplication
], Jon follows up with a request to validate the numbersquoted in the February 26 Press Release[IBM launches New “System z10” Mainframe
], particularly the estimate that a single mainframecan handle to the workload of 1500 x86 servers, in his post[A Bit More Blegging
]. The timing is perfect in that IBM launched[the next wave of Project Big Green
] today.To avoid sounding like an [editorial from the New York Sun
],I checked the facts, and spoke to the person in IBM who did all the calculations. Jon, as always, you have my permissionto publish this on your site if you want.
( I cannot take credit for coining the new term "bleg". I saw this term firstused over on the [FreakonomicsBlog]. If you have not yet read the book "Freakonomics", I highly recommend it! The authors' blog is excellent as well.)
For this comparison, it is important to figure out how much workload a mainframe can support, how much an x86 cansupport, and then divide one from the other. Sounds simple enough, right? And what workload should you choose?IBM chose a business-oriented "data-intensive" workload using Oracle database. (If you wanted instead a scientific"compute-intensive" workload, consider an [IBM supercomputer] instead, the most recent of which clocked in over 1 quadrillion floating point operations per second, or PetaFLOP.) IBM compares the following two systems:
- Sun Fire X2100 M2, model 1220 server (2-way)
IBM did not pick a wimpy machine to compare against. The model 1220 is the fastest in the series, with a 2.8Ghz x86-64 dual-core AMD Opteron processor, capable of running various levels of Solaris, Linux or Windows.In our case, we will use Oracle workloads running on Red Hat Enterprise Linux.All of the technical specifications are available at the[Sun Microsystems Sun Fire X1200] Web site.I am sure that there are comparable models from HP, Dell or even IBM that could have been used for this comparison.
- IBM z10 Enterprise Class mainframe model E64 (64-way)
This machine can run a variety of operating systems also, including Red Hat Enterprise Linux (RHEL). The E64 has four "multiple processor modules" called"processor books" for a total of 77 processing units: 64 central processors, 11 system assist processors (SAP) and 2 spares. That's right, spare processors, in case any others gobad, IBM has got your back. You can designate a central processor in a variety of flavors. For running z/VM and Linux operating systems, the central processors can be put into "Integrated Facility for Linux" (IFL) mode.On IT Jungle, Timothy Patrick Morgan explains the z10 EC in his article[IBM Launches 64-Way z10 Enterprise Class Mainframe Behemoth]. For more information on the z10 EC, see the 110-page [Technical Introduction], orread the specifications on the[IBM z10 EC] Web site.
Moving Oracle workloads from x86 over to mainframe is quite commonsince [IBM and Cisco joined forces to meet Linux On Mainframe demand]. For more information on consolidating x86 servers running Oracle over to a mainframe, read the [Quick Reference], IBMRedbook titled ["Using Oracle Solutionson Linux for System z"], or this [presentation by Jim Elliott, IBM System z Specialist].
In a shop full of x86 servers, there are production servers, test and development servers, quality assuranceservers, standby idle servers for high availability, and so on. On average, these are only 10 percent utilized.For example, consider the following mix of servers:
- 125 Production machines running 70 percent busy
- 125 Backup machines running idle ready for active failover in case a production machine fails
- 1250 machines for test, development and quality assurance, running at 5 percent average utilization
While [some might question, dispute or challenge thisten percent] estimate, it matches the logic used to justify VMware, XEN, Virtual Iron or other virtualization technologies. Running 10 to 20 "virtual servers" on a single physical x86 machine assumes a similar 5-10 percent utilization rate.
Note: The following paragraphs have been revised per comments received.
|Now the math. Jon, I want to make it clear I was not involved in writing the press release nor assisted with thesemath calculations. Please, don't shoot the messenger! Remember this cartoon where two scientists in white lab coats are writing mathcalculations on a chalkboard, and in the middle there is "and then a miracle happens..." to continue the rest ofthe calculations?|
In this case, the miracle is the number that compares one server hardware platform to another. I am not going to bore people with details like the number of concurrent processor threads or the differencesbetween L1 and L3 cache. IBM used sophisticated tools and third party involvement that I am not allowed to talk about, and I have discussed this post with lawyers representing
four (now five) different organizations already,so for the purposes of illustration and explanation only, I have reverse-engineered a new z10-to-Opteron conversion factor as 6.866 z10 EC MIPS per GHz of dual-core AMD Opteron for I/O-intensive workloads running only 10 percent average CPU utilization. Business applications that perform a lot of I/O don't use their CPU as much as other workloads.For compute-intensive or memory-intensive workloads, the conversion factor may be quite different, like 200 MIPS per GHz, as Jeff Savit from Sun Microsystems points out in the comments below.
Keep in mind that each processor is different, and we now have Intel, AMD, SPARC, PA-RISC and POWER (and others); 32-bit versus 64-bit; dual-core and quad-core; and different co-processor chip sets to worry about. AMD Opteron processors come in different speeds, but we are comparing against the 2.8GHz, so 1500 times 6.866 times 2.8 is 28,337. Since these would be running as Linux guestsunder z/VM, we add an additional 7 percent overhead or 2,019 MIPS. We then subtract 15 percent for "smoothing", whichis what happens when you consolidate workloads that have different peaks and valleys in workload, or 4,326 MIPS.The end is that we need a machine to do 26,530 MIPS. Thanks to advances in "Hypervisor" technological synergy between the z/VM operating system and the underlying z10 EC hardware, the mainframe can easily run 90 percent utilized when aggregating multiple workloads, so a 29,477 MIPS machine running at 90 percent utilization can handle these 26,530 MIPS.
N-way machines, from a little 2-way Sun Fire X2100 to the might 64-way z10 EC mainframe, are called "Symmetric Multiprocessors". All of the processors or cores are in play, but sometimes they have to taketurns, wait for exclusive access on a shared resource, such as cache or the bus. When your car is stopped at a red light, you are waiting for your turn to use the shared "intersection". As a result, you don't get linear improvement, but rather you get diminishing returns. This is known generically as the "SMP effect", and in IBM documentsthis as [Large System Performance Reference].While a 1-way z10 EC can handle 920 MIPS, the 64-way can only handle30,657 MIPS. The 29,477 MIPS needed for the Sun x2100 workload can be handled by a 61-way, giving you three extraprocessors to handle unexpected peaks in workload.
But are 1500 Linux guest images architecturally possible? A long time ago, David Boyes of[Sine Nomine Associates] ran 41,400 Linux guest images on a single mainframe using his [Test Plan Charlie], and IBM internallywas able to get 98,000 images, and in both cases these were on machines less powerful than the z10 EC. Neitherof these were tests ran I/O intensive workloads, but extreme limits are always worth testing. The 1500-to-1 reduction in IBM's press release is edge-of-the-envelope as well, so in production environments, several hundred guest images are probably more realistic, and still offer significant TCO savings.
The z10 EC can handle up to 60 LPARs, and each LPAR can run z/VM which acts much like VMware in allowing multipleLinux guests per z/VM instance. For 1500 Linux guests, you could have 25 guests each on 60 z/VM LPARs, or 250 guests on each of six z/VM LPARs, or 750 guests on two LPARs. with z/VM 5.3, each LPAR can support up to 256GB of memory and 32 processors, so you need at least two LPAR to use all 64 engines. Also, there are good reasons to have different guests under different z/VM LPARs, such as separating development/test from production workloads. If you had to re-IPLa specific z/VM LPAR, it could be done without impacting the workloads on other LPARs.
To access storage, IBM offers N-port ID Virtualization (NPIV). Without NPIV, two Linux guest images could not accessthe same LUN through the same FCP port because this would confuse the Host Bus Adapter (HBA), which IBM calls "FICON Express" cards. For example, Linux guest 1 asks to read LUN 587 block 32 and this is sent out a specific port, to a switch, to a disk system. Meanwhile, Linux guest 2 asks to read LUN 587 block 49. The data comes back to the z10 EC with the data, gives it to the correct z/VM LPAR, but then what? How does z/VM know which of the many Linux guests to give the data to? Both touched the same LUN, so it is unclear which made the request. To solve this, NPIV assigns a virtual "World Wide Port Name" (WWPN), up to 256 of them per physical port, so you can have up to 256 Linux guests sharing the same physical HBA port to access the same LUN.If you had 250 guests on each of six z/VM LPARs, and each LPAR had its own set of HBA ports, then all 1500 guestscould access the same LUN.
Yes, the z10 EC machines support Sysplex. The concept is confusing, but "Sysplex" in IBM terminology just means that you can have LPARs either on the same machine or on separate mainframes, all sharing the same time source, whether this be a "Sysplex Timer" or by using the "Server Time Protocol" (STP). The z10 EC can have STP over 6 Gbps Infiniband over distance. If you wantedto have all 1500 Linux guests time stamp data identically, all six z/VM LPARs need access to the shared time source. This can help in a re-do or roll-back situation for Oracle databases to complete or back-out "Units of Work" transactions. This time stamp is also used to form consistency groups in "z/OS Global Mirror", formerly called "XRC" for Extended Remote Distance Copy. Currently, the "timestamp" on I/O applies only to z/OS and Linux and not other operating systems. (The time stamp is done through the CDK driver on Linux, and contributed back to theopen source community so that it is available from both Novell SUSE and Red Hat distributions.)To have XRC have consistency between z/OS and Linux, the Linux guests would need to access native CKD volumes,rather than VM Minidisks or FCP-oriented LUNs.
Note: this is different than "Parallel Sysplex" which refers to having up to 32 z/OS images sharing a common "Coupling Facility" which acts as shared memory for applications. z/VM and Linux do not participate in"Parallel Sysplex".
As for the price, mainframes list for as little as "six figures" to as much as several million dollars, but I have no idea how much this particular model would cost. And, of course, this is just the hardware cost. I could not find the math for the $667 per server replacement you mentioned, so don't have details on that.You would need to purchase z/VM licenses, and possibly support contracts for Linux on System z to be fully comparable to all of the software license and support costs of the VMware, Solaris, Linux and/or Windows licenses you run on the x86 machines.
This is where a lot of the savings come from, as a lot of software is licensed "per processor" or "per core", and so software on 64 mainframe processors can be substantially less expensive than 1500 processors or 3000 cores.IBM does "eat its own cooking" in this case. IBM is consolidating 3900 one-application-each rack-mounted serversonto 30 mainframes, for a ratio of 130-to-1 and getting amazingly reduced TCO. The savings are in the followingareas:
- Hardware infrastructure. It's not just servers, but racks, PDUs, etc. It turns out to be less expensive to incrementally add more CPU and storage to an existing mainframe than to add or replace older rack-em-and-stack-emwith newer models of the same.
- Cables. Virtual servers can talk to each other in the same machine virtually, such as HiperSockets, eliminatingmany cables. NPIV allows many guests to share expensive cables to external devices.
- Networking ports. Both LAN and SAN networking gear can be greatly reduced because fewer ports are needed.
- Administration. We have Universities that can offer a guest image for every student without having a majorimpact to the sys-admins, as the students can do much of their administration remotely, without having physicalaccess to the machinery. Companies uses mainframe to host hundreds of virtual guests find reductions too!
- Connectivity. Consolidating distributed servers in many locations to a mainframe in one location allows youto reduce connections to the outside world. Instead of sixteen OC3 lines for sixteen different data centers, you could have one big OC48 line instead to a single data center.
- Software licenses. Licenses based on servers, cores or CPUs are reduced when you consolidate to the mainframe.
- Floorspace. Generally, floorspace is not in short supply in the USA, but in other areas it can be an issue.
- Power and Cooling. IBM has experienced significant reduction in power consumption and cooling requirementsin its own consolidation efforts.
All of the components of DFSMS (including DFP, DFHSM, DFDSS and DFRMM) were merged into a single product "DFSMS for z/OS" and is now an included element in the base z/OS operating system. As a result of these, customers typically have 80 to 90 percent utilization on their mainframe disk. For the 1500 Linux guests, however, most of the DFSMS features of z/OS do not apply. These functions were not "ported over" to z/VM nor Linux on any platform.
Note: DFSMS can backup or dump Linux on System z partitions or volumes. See this [Appendix C. HOWTO backup Linux data through z/OS] for details.
Instead, the DFSMS concepts have been re-implemented into a new product called "Scale-Out File Services" (SOFS) which would provide NAS interfaces to a blendeddisk-and-tape environment. The SOFS disk can be kept at 90 percent utilization because policies can place data, movedata and even expire files, just like DFSMS does for z/OS data sets. SOFS supports standard NAS protocols such as CIFS,NFS, FTP and HTTP, and these could be access from the 1500 Linux guests over an Ethernet Network Interface Card (NIC), which IBM calls "OSA Express" cards.
Lastly, IBM z10 EC is not emulating x86 or x86-64 interfaces for any of these workloads. No doubt IBM and AMD could collaborate together to come up with an AMD Opteron emulator for the S/390 chipset, and load Windows 2003 right on top of it, but that would just result in all kinds of emulation overhead.Instead, Linux on System z guests can run comparable workloads. There are many Linux applications that are functionally equivalent or the same as their Windows counterparts. If you run Oracle on Windows, you could runOracle on Linux. If you run MS Exchange on Windows, you could run Bynari on Linux and let all of your Outlook Expressusers not even know their Exchange server had been moved! Linux guest images can be application servers, web servers, database servers, network infrastructure servers, file servers, firewall, DNS, and so on. For nearly any business workload you can assign to an x86 server in a datacenter, there is likely an option for Linux on System z.
Hope this answers all of your questions, Jon. These were estimates based on basic assumptions. This is not to imply that IBM z10 EC and VMware are the only technologies that help in this area, you can certainly find virtualization on other systems and through other software.I have asked IBM to make public the "TCO framework" that sheds more light on this.As they say, "Your mileage may vary."
For more on this series, check out the following posts:
If in your travels, Jon, you run into someone interested to see how IBM could help consolidate rack-mounted servers over to a z10 EC mainframe, have them ask IBM for a "Scorpion study". That is the name of the assessment that evaluates a specific clientsituation, and can then recommend a more accurate estimate configuration.
technorati tags: Jon Toigo, DrunkenData, bleg, IBM, z10, EC, E64, mainframe, x86, AMD, Opteron, Sun, Fire, X2100, petaFLOP, Freakonomics, Red Hat, RHEL, IFL, VMware, Jim Elliott, Xen, Virtual Iron, Solaris, Linux, Windows, Project Big Green, Infiniband, STP, Sysplex, Scorpion study, MS Exchange, Bynari, Oracle
It's official! My "blook" Inside System Storage - Volume I
is now available.
|This blog-based book, or “blook”, comprises the first twelve months of posts from this Inside System Storage blog,165 posts in all, from September 1, 2006 to August 31, 2007. Foreword by Jennifer Jones. 404 pages.|
- IT storage and storage networking concepts
- IBM strategy, hardware, software and services
- Disk systems, Tape systems, and storage networking
- Storage and infrastructure management software
- Second Life, Facebook, and other Web 2.0 platforms
- IBM’s many alliances, partners and competitors
- How IT storage impacts society and industry
You can choose between hardcover (with dust jacket) or paperback versions:
This is not the first time I've been published. I have authored articles for storage industry magazines, written large sections of IBM publications and manuals, submitted presentations and whitepapers to conference proceedings, and even had a short story published with illustrations by the famous cartoon writer[Ted Rall].
But I can say this is my first blook, and as far as I can tell, the first blook from IBM's many bloggers on DeveloperWorks, and the first blook about the IT storage industry.I got the idea when I saw [Lulu Publishing] run a "blook" contest. The Lulu Blooker Prize is the world's first literary prize devoted to "blooks"--books based on blogs or other websites, including webcomics. The [Lulu Blooker Blog] lists past year winners. Lulu is one of the new innovative "print-on-demand" publishers. Rather than printing hundredsor thousands of books in advance, as other publishers require, Lulu doesn't print them until you order them.
I considered cute titles like A Year of Living Dangerously, orAn Engineer in Marketing La-La land, or Around the World in 165 Posts, but settled on a title that matched closely the name of the blog.
In addition to my blog posts, I provide additional insights and behind-the-scenes commentary. If you go to the Luluwebsite above, you can preview an entire chapter in its entirety before purchase. I have added a hefty 56-page Glossary of Acronyms and Terms (GOAT) with over 900 storage-related terms defined, which also doubles as an index back to the post (or posts) that use or further explain each term.
So who might be interested in this blook?
- Business Partners and Sales Reps looking to give a nice gift to their best clients and colleagues
- Managers looking to reward early-tenure employees and retain the best talent
- IT specialists and technicians wanting a marketing perspective of the storage industry
- Mentors interested in providing motivation and encouragement to their proteges
- Educators looking to provide books for their classroom or library collection
- Authors looking to write a blook themselves, to see how to format and structure a finished product
- Marketing personnel that want to better understand Web 2.0, Second Life and social networking
- Analysts and journalists looking to understand how storage impacts the IT industry, and society overall
- College graduates and others interested in a career as a storage administrator
And yes, according to Lulu, if you order soon, you can have it by December 25.
technorati tags: IBM, blook, Volume I, Jennifer Jones, system, storage, strategy, hardware, software, services, disk, tape, networking, SAN, secondlife, Web2.0, facebook, Lulu, publishing, Blooker Prize, articles, magazines, proceedings, Ted Rall, insights, glossary, early-tenure, mentors, library, classroom, administrator, print, publish, on demand
A reader of my blog asked me what seemed like a simple enough question:
Whatever happened to Lotus Approach? I loved that personal db. (thoughit's been awhile...)
Of course, researching an answer, I encountered some interesting new information. Interestingly, everyone tries to "read between the lines" and tries to determine what solution is best.
From a colleague from Lotus:
You can still get [Lotus Approach] as part of Smartsuite.
However, I have to assume his real question is ... "what is the quick and easy way for me to build a lightweight database app like Microsoft Access that I can distribute as a standalone executable?"
To which I would say "Lotus has a program called Approach, which is part of Lotus SmartSuite, which some people still use. However, a lot of the focus in IBM now centers around the lightweight Cloudscape database which IBM acquired from Informix, which is now known as the [open source project called Derby]. Many IBM and Lotus products, such as Lotus Expeditor use the JDBC connection to Derby, which allows you to use Windows, Linux, Flash, etc. ... with no vendor lock in".
I am familiar with Cloudscape, and I evaluated it as a potential database for IBM TotalStorage Productivity Center, when I was the lead architect defining the version 1 release. It runs entirely on Java, which is both a plus and minus. Plus in that it runs anywhere Java runs, but a minus in that it is not optimized for high performance or large scalability. Because of this, we decided instead on using the full commercial DB2 database instead for Productivity Center.
Not to be undone, my colleagues over at DB2 offered a different alternative, [DB2 Express-C], which runs on a variety of Windows, Linux-x86, and Linux on POWER platforms. It is "free" as in beer, not free as in speech, which means you can download and use it today at no charge, and even ship products with it included, but you are not allowed to modify and distribute altered versions of it, as you can with "free as in speech" open source code, as in the case of Derby above (see [Apache License 2.0"] for details).
(If you have no idea what I am talking about in my distinction between "free speech" and "free beer", see Simon Phipps' article[Perspective: Free speech, free beer and free software] orthe definition from the [Free Software Foundation].)
As I see it, DB2 Express-C has two key advantages. First, if you like the free version, you can purchase a "support contract" for those that need extra hand-holding, or are using this as part of a commercial business venture. Second,for those who do prefer vendor lock-in, it is easyto upgrade Express-C to the full IBM DB2 database product, so if you are developing a product intended for use with DB2, you can develop it first with DB2 Express-C, and migrate up to full DB2 commercial version when you are ready.
This is perhaps more information than you probably expected for such a simple question. Meanwhile, I am stilltrying to figure out MySQL as part of my [OLPC volunteer project].
technorati tags: IBM, Lotus, Approach, SmartSuite, TotalStorage, Productivity Center, Cloudscape, Apache, Derby, free, speech, beer, DB2, Express-C, Windows, Linux, POWER, open source
I am still wiping the coffee off my computer screen, inadvertently sprayed when I took a sip while reading HDS' uber-blogger Hu Yoshida's post on storage virtualization andvendor lock-in
. This blog appears to be the text version of theirfunny video
While most of the post is accurate and well-stated, two opinions particular caught my eye. I'll be nice and call them opinions, since these are blogs, and always subject to interpretation. I'll put quotes around them so that people will correctly relate these to Hu, and not me.
"Storage virtualization can only be done in a storage controller. Currently Hitachi is the only vendor to provide this."
-- Hu Yoshida
Hu, I enjoy all of your blog entries, but you should know better. HDS is fairly new-comer to the storage virtualization arena, so since IBM has been doing this for decades, I will bring you and the rest of the readers up to speed. I am not starting a blog-fight, just want to provide some additional information for clients to consider when making choices in the marketplace.
First, let's clarify the terminology. I will use 'storage' in the broad sense, including anything that can hold 1's and 0's, including memory, spinning disk media, and plastic tape media. These all have different mechanisms and access methods, based on their physical geometry and characteristics. The concept of 'virtualization' is any technology that makes one set of resources look like another set of resources with more preferable characteristics, and this applies to storage as well as servers and networks. Finally, 'storage controller' is any device with the intelligence to talk to a server and handle its read and write requests.
Second, let's take a look at all the different flavors of storage virtualization that IBM has developed over the past 30 years.
IBM introduces the S/370 with the OS/VS1 operating system. "VS" here refers to virtual storage, and in this case internal server memory was swapped out to physical disk. Using a table mapping, disk was made to look like an extension of main memory.
IBM introduces the IBM 3850 Mass Storage System (MSS). Until this time, programs that ran on mainframes had to be acutely aware of the device types being written, as each device type had different block, track and cylinder sizes, so a program written for one device type would have to be modified to work with a different device type. The MSS was able to take four 3350 disks, and a lot of tapes, and make them look like older 3330 disks, since most programs were still written for the 3330 format. The MSS was a way to deliver new 3350 disk to a 3330-oriented ecosystem, and greatly reduce the cost by handling tape on the back end. The table mapping was one virtual 3330 disk (100 MB) to two physical tapes (50 MB each). Back then, all of the mainframe disk systems had separate controllers. The 3850 used a 3831 controller that talked to the servers.
IBM invents Redundant Array of Independent Disk (RAID) technology. The table mapping is one or more virtual "Logical Units" (or "LUNs") to two or more physical disks. Data is striped, mirrored and paritied across the physical drives, making the LUNs look and feel like disks, but with faster performance and higher reliability than the physical drives they were mapped to. RAID could be implemented in the server as software, on top or embedded into the operating system, in the host bus adapter, or on the controller itself. The vendor that provided the RAID software or HBA did not have to be the same as the vendor that provided the disk, so in a sense, this avoided "vendor lock-in".Today, RAID is almost always done in the external storage controller.
IBM introduces the Personal Computer. One of the features of DOS is the ability to make a "RAM drive". This is technology that runs in the operating system to make internal memory look and feel like an external drive letter. Applications that already knew how to read and write to drive letters could work unmodified with these new RAM drives. This had the advantage that the files would be erased when the system was turned off, so it was perfect for temporary files. Of course, other operating systems today have this feature, UNIX has a /tmp directory in memory, and z/OS uses VIO storage pools.
This is important, as memory would be made to look like disk externally, as "cache", in the 1990s.
IBM AIX v3 introduces Logical Volume Manager (LVM). LVM maps the LUNs from external RAID controllers into virtual disks inside the UNIX server. The mapping can combine the capacity of multiple physical LUNs into a large internal volume. This was all done by software within the server, completely independent of the storage vendor, so again no lock-in.
IBM introduces the Virtual Tape Server (VTS). This was a disk array that emulated a tape library. A mapping of virtual tapes to physical tapes was done to allow full utilization of larger and larger tape cartridges. While many people today mistakenly equate "storage virtualization" with "disk virtualization", in reality it can be implemented on other forms of storage. The disk array was referred to as the "Tape Volume Cache". By using disk, the VTS could mount an empty "scratch" tape instantaneously, since no physical tape had to be mounted for this purpose.
Contradicting its "tape is dead" mantra, EMC later developed its CLARiiON disk library that emulates a virtual tape library (VTL).
IBM introduces the SAN Volume Controller. It involves mapping virtual disks to manage disks that could be from different frames from different vendors. Like other controllers, the SVC has multiple processors and cache memory, with the intelligence to talk to servers, and is similar in functionality to the controller components you might find inside monolithic "controller+disk" configurations like the IBM DS8300, EMC Symmetrix, or HDS TagmaStore USP. SVC can map the virtual disk to physical disk one-for-one in "image mode", as HDS does, or can also map virtual disks across physical managed disks, using a similar mapping table, to provide advantages like performance improvement through striping. You can take any virtual disk out of the SVC system simply by migrating it back to "image mode" and disconnecting the LUN from management. Again, no vendor lock-in.
The HDS USP and NSC can run as regular disk systems without virtualization, or the virtualization can be enabled to allow external disks from other vendors. HDS usually counts all USP and NSC sold, but never mention what percentage these have external disks attached in virtualization mode. Either they don't track this, or too embarrassed to publish the number. (My guess: single digit percentage).
Few people remember that IBM also introduced virtualization in both controller+disk and SAN switch form factors. The controller+disk version was called "SAN Integration Server", but people didn't like the "vendor lock-in" having to buy the internal disk from IBM. They preferred having it all external disk, with plenty of vendor choices. This is perhaps why Hitachi now offers a disk-less version of the NSC 55, in an attempt to be more like IBM's SVC.
IBM also had introduced the IBM SVC for Cisco 9000 blade. Our clients didn't want to upgrade their SAN switch networking gear just to get the benefits of disk virtualization. Perhaps this is the same reason EMC has done so poorly with its "Invista" offering.
So, bottom line, storage virtualization can, and has, been delivered in the operating system software, in the server's host bus adapter, inside SAN switches, and in storage controllers. It can be delivered anywhere in the path between application and physical media. Today, the two major vendors that provide disk virtualization "in the storage controller" are IBM and HDS, and the three major vendors that provide tape virtualization "in the storage controller" are IBM, Sun/STK, and EMC. All of these involve a mapping of logical to physical resources. Hitachi uses a one-for-one mapping, whereas IBM additionally offers more sophisticated mappings as well.
technorati tags: IBM, disk, tape, storage, virtualization, Hu Yoshia, HDS, Hitachi, TagmaStore, USP, NSC, disk-less, SAN Volume Controller, LVM, AIX, RAID, SAN, blade, Sun, STK, Cisco, EMC, Invista,
Last week, in my posting on Toshiba's latest 1.8" drive
, Robert Pearson asks:
You may not be the right person to ask but I am asking everyone so "How do you see hybrid disk drives?"
(For the record, I am not immediately related to Robert. At onepoint, "Pearson" was the 12th most common surname in the USA, but now doesn't even make the Top 100.)
Robert, I would like to encourage you and everyone else to ask questions, don't worry if I am the wrong person to ask, asprobably I know the right person within IBM. Some people have called me the "Kevin Bacon" of Storage,as I am often less than six degrees away from the right person, having worked in IBM Storage for over 20 years.
For those not familiar with hybrid drives, there is a good write-up in Wikipedia.
Unfortunately, most of the people I would consult on this question, such as those from Market Intelligence or Research, are on vacation for the holidays, so, Robert, I will have to rely on my trusted 78-card Tarot deck and answer you with a five-card throw.
- Your first card, Robert, is the Hermit. This card represents "introspection". The best I/O is no I/O, which means that if applications can keep the information they need inside server memory, you can avoid the bus bandwidth limitations to going to external storage devices. Where external storage makes sense is when data is shared between servers, or when the single server is limited to a set amount of internal memory. So, consider maxing out the memory in your server first (IBM would be glad to sell you more internal memory!!!), then consider outside solid-state or hybrid devices. Windows for example has an architectural limit of 4GB.
- Your second card, Robert, is the Four of Cups, representing "apathy".On the card, you see three cups together, with the fourth cup being delivered from a cloud. This reminds me thatwe have three storage tiers already (memory,disk,tape), and introducing a fourth tier into the mix may not garnermuch excitement. For the mainframe, IBM introduced a Solid-State Device, call the Coupling Facility, which can be accessed from multipleSystem z servers. It is used heavily by DFSMS and DB2 to hold shared information. However, given some customer's apathytowards Information Lifecycle Management which includes "tiered storage", introducing yet another tier that forcespeople to decide what data goes where may be another challenge.
- Your third card, Robert, is the Chariot, which represents "Speed, Determination,and Will". In some cases, solid state disk are faster for reading, but can be slower for writing. In the case of ahybrid drive, where the memory acts as a front-end cache, read-hits would be faster, but read-misses might be slower.While the idea of stopping the drives during inactivity will reduce power consumption, spinning up and slowing downthe disk may incur additional performance penalties. At the time of this post, the fastest disk system remains the IBM SAN Volume Controller, based on SPC-1 and SPC-2 benchmarks in excess of those published for other devices.
- Your fourth card, Robert, is the Eight of Pentacles, which represents"Diligence, Hard work". The pentacles are coins with five-sided stars on them, and this often represents money.Our research team has projected that spinning disk will continue to be a viable and profitable storage media for at least anothereight years.
- Your fifth and last card, Robert, is the World, which normallyrepresents "Accomplishment", but since it is turned upside down, the meaning is reversed to "Limitation". Some Hybriddisks, and some types of solid state memory in general, do have limitations in the number of write cycles they can handle. For thoseunhappy with the frequency and slowness for rebuilds on SATA disk may find similar problems with hybrid drives.For that reason, businesses may not trust using hybrid drives for their busiest, mission-critical applications, but certainlymight use it for archive data with lower write-cycle requirements.
The tarot cards are never wrong, but certainly interpretations of the cards can be.
technorati tags: Robert Pearson, Kevin Bacon, IBM, storage, Tarot, card, deck, Hermit, Four-of-Cups, Coupling Facility, Chariot, SAN Volume Controller, SVC, SPC-1, SPC-2, benchmarks, Texas Memory Systems, Eight-of-Pentacles, World, Hybrid, SATA
I'm in Atlanta today, on my way back to Tucson, but wanted to talk about IBM's entry-level iSCSI offerings, based on comments on this week's discussion about Dell's acquisition of EqualLogic.
Analysts were quick to comment on this when the news broke.Tony Asaro gave his take on [Dell's Logic - The Storage Market is No Longer Equal], and Steve Duplessie writes [Dell Just Bought N.H.’s Tech Sector]. The last time I remember Steve talking about EqualLogic, [Catching Up], he had the funniestquote:
"EqualLogic didn’t get 2,000 customers because people were dying to use iSCSI. It got them because it built systems that scale dynamically and because a system the size of Montana can be managed by someone as clueless as my ex-wife."
As with any acquisition, people might be asking if this is a "match made in heaven" that makes strong business sense,or another HP-Compaq debacle. Back in September, I posted [Supermarkets and Specialty Shops] to explain how the storage marketplace has two market segments. Internally, IBM distinguishesbetween "clients" and "customers". Clients are those that buy services and complete solutions from a one-stop systems vendor, such as IBM, HP, Sun, or Dell, or systems integrator like IBM, CSC or EDS. Customers are those that buy products and components, from the systems vendors I just mentioned, as well as from individual specialty shops, like EMC, HDS, or NetApp.
To reach the growing "supermarket" segment, specialty shops are dependent on systems vendors to OEM or resell their kit: EMC disk through Dell, HDS disk through Sun and HP, NetApp through IBM. Until now, EqualLogichad to make their living as a "specialty" shop, but iSCSI appeals more to SMB than large enterprises, andSMB tend to be in the "supermarket" segment, so they partnered with Sun. Here is the timeline of this likely awkwardand strained relationship:
I am not surprised that I haven't seen anything in the blogosphere yet from HP, Dell or Sun. I suspect this news meansthat Sun won't be reselling Dell's EqualLogic boxes anymore, and perhaps there is nothing more for Sun bloggers Randy Chalfant or Nigel Dessau to add to that. HP and Dell are practically non-existent in the storage blogosphere, so I didn't expect much from them either.
I did, however, expect EMC to put in their spin, given that Dell resells EMC disk, and accounts for perhaps 15% of their revenues.Now that Dell has multiple offerings, they will be instructing their channel reps when to lead with EqualLogic versus when to sell EMC, for now, until 2011, at which point may simplify their storage sales model to just EqualLogic. I don't know if Dell would do that in 2011. Depending on how quick the decline happens, EMC may have to increase the pricesof their gear, or cut into their development budgets, to make up for this loss.
I started this post because of a comment from EMC blogger Chuck Hollis, who speculates how this will impact[Dell, EqualLogic and EMC].In that post, he expresses his opinion (which I will put into a different color):
"Speculation is pretty evenly split. Neither HP nor IBM have a good, entry-level iSCSI product."
If he had left out the word "good", then that would just be a false statement, but by adding the word "good" reduces this to merely an opinion of IBM products that I disagree with. (I have no experience with whateverHP sells in this category, nor talked to any customers about their experiences, so will neither agree nordisagree with Chuck's opinion of the HP half of his statement). As for the term "Entry-level", this is fairly well defined by analysts as a storage system under $50,000 US Dollars. Actually, IBM has three good offerings.
Our basic, lowest-price model is the IBM System Storage DS3300, which does iSCSI only, like the EqualLogic offerings. This supports both SAS and SATA disks, and can attach to our System x and System p server product lines.
Our smallest model of our fancier IBM System Storage N series not only supports iSCSI, but also CIFS, NFS,HTTP, FTP, and FCP protocols, what we call "Unified Storage". The iSCSI feature is included at no additional charge, and small customers can start with this, then scale up to larger N3600, N5000 or N7000 models, andadd more protocols and software features, as their business grows.
Our next larger model, but still entry-level, is the N3600. Since the N series supports a unified multi-protocolplatform, with features like SnapLock for regulatory compliance and SnapMirror for remote disk mirroring. The IBM System Storage N series easily replaces any mix of EMC "C-boxes": Centera, Celerra, and CLARiiON.
Both the DS3300 and the N series support the various Business Applications I have discussed this week, Microsoft Exchange, Lotus Domino, SAP, Oracle, Siebel, JD Edwards and PeopleSoft. N series offers SnapManager for variousapplications to make the business value even that much better.
Chuck speculates that Dell did this to compete better against rival HP, but that doesn't make sense, sincehe feels HP didn't have much to offer in this space. Perhaps Dell did this to competebetter against IBM, the number one vendor in storage hardware, according to IDC. Looking at what IBM andNetApp have to offer, Dell may have realized that they didn't have competitive disk systems from their resellingrelationship with EMC, looked elsewhere and found EqualLogic. Meanwhile, EqualLogic probably felt that Sun wasgoing out of business, or not yet fully supportive of IP SAN environments, and decided to ["switch horses midstream"].
For more about the DS3300 or N series, see my [Announcement Recap of October 2007] or visit our [www.ibm.com/storage] website.
technorati tags: IBM, entry-level, iSCSI, Dell, EqualLogic, ESG, Tony Asaro, Steve Duplessie, Montana, ex-wife, HP, Compaq, systems vendors, systems integrators, supermarket, specialty, products, components, services, solutions, Chuck Hollis, Sun, NetApp, HDS, Exchange, Domino, SAP, Oracle, Siebel, JD Edwards, PeopleSoft, IDC, DS3300, N3300, N3600
Continuing my week in Chicago for the IBM Storage and Storage Networking Symposium and System x and BladeCenter Technical Conference, I presented a variety of topics.
- Hybrid Storage for a Green Data Center
The cost of power and cooling has risen to be a #1 concern among data centers. I presented the following hybrid storage solutions that combine disk with tape. These provide the best of both worlds, the high performance access time of disk with the lower costs and reduced energy consumption of tape.
- IBM [System Storage DR550] - IBM's Non-erasable, Non-rewriteable (NENR) storage for archive and compliance data retention
- IBM Grid Medical Archive Solution [GMAS] - IBM's multi-site grid storage for PACS applications and electronic medical records[EMR]
- IBM Scale-out File Services [SoFS] - IBM's scalable NAS solution that combines a global name space with a clustered GPFS file system, serving as the ideal basis for IBM's own[Cloud Computing and Storage] offerings
Not only do these help reduce energy costs, they provide an overall lower total cost of ownership (TCO) thantraditional WORM optical or disk-only storage configurations.
- The Convergence of Networks - Understanding SAN, NAS and iSCSI in the Data Center Network
This turned out to be my most popular session. Many companies are at a crossroads in choosing data and storage networking solutions in light of recent announcements from IBM and others. In the span of 75 minutes, I covered:
- Block storage concepts, storage virtualization and RAID levels
- File system concepts, how file systems map files to block storage
- Network Attach Storage, the history of the NFS and CIFS protocols, Pros and Cons of using NAS
- Storage Area Networks, the history of SAN protocols including ESCON, FICON and FCP, Pros and Cons of using SAN
- IP SAN technologies, iSCSI and Fibre Channel over Ethernet (FCoE), Pros and Cons of using this approach
- Network Convergence with Infiniband and Fibre Channel over Convergence Enhanced Ethernet (FCoCEE), why Infiniband was not adopted historically in the marketplace as a storage protocol, and the features and enhancements of Convergence Enhanced Ethernet (CEE) needed to merge NAS, SAN and iSCSI traffic onto a single converged data center network [DCN]
Yes, it was a lot of information to cover, but I managed to get it done on time.
- IBM Tivoli Storage Productivity Center version 4.1 Overview and Update
In conferences like these, there are two types of product-level presentations. An "Overview" explains howproducts work today to those who are not familiar with it. An "Update" explains what's new in this version of the product for those who are already familiar with previous releases. I decided to combine these into one sessionfor IBM's new version of [Tivoli Storage Productivity Center].I was one of the original lead architects of this product many years ago, and was able to share many personalexperiences about its evolution in development and in the field at client facilities.Analysts have repeatedly rated IBM Productivity Center as one of the top Storage Resource Management (SRM) tools available in the marketplace.
- Information Lifecycle Management (ILM) Overview
Can you believe I have been doing ILM since 1986? I was the lead architect for DFSMS which provides ILM support for z/OS mainframes. In 2003-2005, I spent 18 months in the field performingILM assessments for clients, and now there are dozens of IBM practitioners in Global Technology Services andSTG Lab Services that do this full time. This is a topic I cover frequently at the IBM Executive Briefing Center[EBC], because it addressesseveral top business challenges:
- Reducing costs and simplifying management
- Improving efficiency of personnel and application workloads
- Managing risks and regulatory compliance
IBM has a solution based on five "entry points". The advantage of this approach is that it allows our consultants to craft the right solution to meet the specific requirements of each client situation. These entry points are:
- Enterprise Content Management [ECM]
- Tiered Information Infrastructure - we don't limit ourselves to just "Tiered Storage" as storage is only part of a complete[information infrastructure] of servers,networks and storage
- Storage Optimization and Virtualization - including virtual disk, virtual tape and virtual file solutions
- Process Enhancement and Automation - an important part of ILM are the policies and procedures, such as IT Infrastructure Library [ITIL] best practices
- Archive and Retention - space management and data retention solutions for email, database and file systems
I did not get as many attendees as I had hoped for this last one, as I was competing head-to-head in the same time slot as Lee La Frese covering IBM's DS8000 performance with Solid State Disk (SSD) drives, John Sing covering Cloud Computing and Storage with SoFS, and Eric Kern covering IBM Cloudburst.
I am glad that I was able to make all of my presentations at the beginning of the week, so that I can then sit back and enjoy the rest of the sessions as a pure attendee.
technorati tags: IBM, Symp09, storage symposium, hybrid storage, DR550, NENR, WORM, GMAS, SoFS, PACS, EMR, NAS, GPFS, SAN, iSCSI, FCoE, FCoCEE, CEE, DCN, TCO, RAID, ESCON, FICON, Infiniband, Tivoli, Productivity Center, ILM, virtualization, ITIL, DS8000, SSD, Cloudburst, Information Infrastructure
To make true advances in any industry or field requires forward thinking—as well as industry insight and experience. It can't be done just by packaging a bag of piece parts and putting a new label on it. But forward thinkers are putting smarter, more powerful technology to uses that were once unimaginable -- either in scale or in progress.
I am pleased that IBM has honored me with recognition as a "forward thinker" on the corporate-wide [IBM Smarter Planet for Smarter IT systems and Infrastructure]. This is quite an honor, being one of the "faces" of IBM's Smarter Planet campaign. I am joined by my esteemed colleagues: [Brian Sanders], [Steve Will], [Willie Favero], and [Kathleen Holm].
The graphics developed for the IBM Smarter Planet vision are interesting. This one for Infrastructure includes images relating to public utilities, like gas, water and electricity, clouds representing cloud computing, green forests representing the need for energy efficiency and reducing carbon footprint to fight global warming, roads, representing the intricate transportation and traffic systems, highways and city streets that connect us all together, and a printed circuit board, representing the Information Technology that makes all of this possible.
Ironically, I didn't even know I made the final cut until I got three, yes three, separate requests for interviews about it. I already reached the "million hits" milestone. Other people track these things for me, so it will be interesting how much additional traffic my latest [15 minutes of fame] will generate.
Infrastructure is just one of the 25 different areas that IBM's vision for a Smarter Planet is trying to address, including the need for smarter buildings, smarter cities, smarter transportation systems, smarter energy grids, smarter healthcare and public safety, and smarter governments.
To learn more, visit the [Smarter Planet overview] landing page. Together, we can build a smarter planet!
technorati tags: IBM, Brian Sanders, Steve Will, Willie Favero, Kathleen Holm, Smarter Planet, Infrastructure, forward thinker
Well, this week I am in Maryland, just outside of Washington DC. It's a bit cold here.
Robin Harris over at StorageMojo put out this Open Letter to Seagate, Hitachi GST, EMC, HP, NetApp, IBM and Sun about the results of two academic papers, one from Google, and another from Carnegie Mellon University (CMU). The papers imply that the disk drive module (DDM) manufacturers have perhaps misrepresented their reliability estimates, and asks major vendors to respond. So far, NetAppand EMC have responded.
I will not bother to re-iterate or repeat what others have said already, but make just a few points. Robin, you are free to consider this "my" official response if you like to post it on your blog, or point to mine, whatever is easier for you. Given that IBM no longer manufacturers the DDMs we use inside our disk systems, there may not be any reason for a more formal response.
- Coke and Pepsi buy sugar, Nutrasweet and Splenda from the same sources
Somehow, this doesn't surprise anyone. Coke and Pepsi don't own their own sugar cane fields, and even their bottlers are separate companies. Their job is to assemble the components using super-secret recipes to make something that tastes good.
IBM, EMC and NetApp don't make DDMs that are mentioned in either academic study. Different IBM storage systems uses one or more of the following DDM suppliers:
- Seagate (including Maxstor they acquired)
- Hitachi Global Storage Technologies, HGST (former IBM division sold off to Hitachi)
In the past, corporations like IBM was very "vertically-integrated", making every component of every system delivered.IBM was the first to bring disk systems to market, and led the major enhancements that exist in nearly all disk drives manufactured today. Today, however, our value-add is to take standard components, and use our super-secret recipe to make something that provides unique value to the marketplace. Not surprisingly, EMC, HP, Sun and NetApp also don't make their own DDMs. Hitachi is perhaps the last major disk systems vendor that also has a DDM manufacturing division.
So, my point is that disk systems are the next layer up. Everyone knows that individual components fail. Unlike CPUs or Memory, disks actually have moving parts, so you would expect them to fail more often compared to just "chips".
If you don't feel the MTBF or AFR estimates posted by these suppliers are valid, go after them, not the disk systems vendors that use their supplies. While IBM does qualify DDM suppliers for each purpose, we are basically purchasing them from the same major vendors as all of our competitors. I suspect you won't get much more than the responses you posted from Seagate and HGST.
- American car owners replace their cars every 59 months
According to a frequently cited auto market research firm, the average time before the original owner transfers their vehicle -- purchased or leased -- is currently 59 months.Both studies mention that customers have a different "definition" of failure than manufacturers, and often replace the drives before they are completely kaput. The same is true for cars. Americans give various reasons why they trade in their less-than-five-year cars for newer models. Disk technologies advance at a faster pace, so it makes sense to change drives for other business reasons, for speed and capacity improvements, lower power consumption, and so on.
The CMU study indicated that 43 percent of drives were replaced before they were completely dead.So, if General Motors estimated their cars lasted 9 years, and Toyota estimated 11 years, people still replace them sooner, for other reasons.
At IBM, we remind people that "data outlives the media". True for disk, and true for tape. Neither is "permanent storage", but rather a temporary resting point until the data is transferred to the next media. For this reason, IBM is focused on solutions and disk systems that plan for this inevitable migration process. IBM System Storage SAN Volume Controller is able to move active data from one disk system to another; IBM Tivoli Storage Manager is able to move backup copies from one tape to another; and IBM System Storage DR550 is able to move archive copies from disk and tape to newer disk and tape.
If you had only one car, then having that one and only vehicle die could be quite disrupting. However, companies that have fleet cars, like Hertz Car Rentals, don't wait for their cars to completely stop running either, they replace them well before that happens. For a large company with a large fleet of cars, regularly scheduled replacement is just part of doing business.
This brings us to the subject of RAID. No question that RAID 5 provides better reliability than having just a bunch of disks (JBOD). Certainly, three copies of data across separate disks, a variation of RAID 1, will provide even more protection, but for a price.
Robin mentions the "Auto-correlation" effect. Disk failures bunch up, so one recent failure might mean another DDM, somewhere in the environment, will probably fail soon also. For it to make a difference, it would (a) have to be a DDM in the same RAID 5 rank, and (b) have to occur during the time the first drive is being rebuilt to a spare volume.
- The human body replaces skin cells every day
So there are individual DDMs, manufactured by the suppliers above; disk systems, manufactured by IBM and others, and then your entire IT infrastructure. Beyond the disk system, you probably have redundant fabrics, clustered servers and multiple data paths, because eventually hardware fails.
People might realize that the human body replaces skin cells every day. Other cells are replaced frequently, within seven days, and others less frequently, taking a year or so to be replaced. I'm over 40 years old, but most of my cells are less than 9 years old. This is possible because information, data in the form of DNA, is moved from old cells to new cells, keeping the infrastructure (my body) alive.
Our clients should approach this in a more holistic view. You will replace disks in less than 3-5 years. While tape cartridges can retain their data for 20 years, most people change their tape drives every 7-9 years, and so tape data needs to be moved from old to new cartridges. Focus on your information, not individual DDMs.
What does this mean for DDM failures. When it happens, the disk system re-routes requests to a spare disk, rebuilding the data from RAID 5 parity, giving storage admins time to replace the failed unit. During the few hours this process takes place, you are either taking a backup, or crossing your fingers.Note: for RAID5 the time to rebuild is proportional to the number of disks in the rank, so smaller ranks can be rebuilt faster than larger ranks. To make matters worse, the slower RPM speeds and higher capacities of ATA disks means that the rebuild process could take longer than smaller capacity, higher speed FC/SCSI disk.
According to the Google study, a large portion of the DDM replacements had no SMART errors to warn that it was going to happen. To protect your infrastructure, you need to make sure you have current backups of all your data. IBM TotalStorage Productivity Center can help identify all the data that is "at risk", those files that have no backup, no copy, and no current backup since the file was most recently changed. A well-run shop keeps their "at risk" files below 3 percent.
So, where does that leave us?
- ATA drives are probably as reliable as FC/SCSI disk. Customers should chose which to use based on performance and workload characteristics. FC/SCSI drives are more expensive because they are designed to run at faster speeds, required by some enterprises for some workloads. IBM offers both, and has tools to help estimate which products are the best match to your requirements.
- RAID 5 is just one of the many choices of trade-offs between cost and protection of data. For some data, JBOD might be enough. For other data that is more mission critical, you might choose keeping two or three copies. Data protection is more than just using RAID, you need to also consider point-in-time copies, synchronous or asynchronous disk mirroring, continuous data protection (CDP), and backup to tape media. IBM can help show you how.
- Disk systems, and IT environments in general, are higher-level concepts to transcend the failures of individual components. DDM components will fail. Cache memory will fail. CPUs will fail. Choose a disk systems vendor that combines technologies in unique and innovative ways that take these possibilities into account, designed for no single point of failure, and no single point of repair.
So, Robin, from IBM's perspective, our hands are clean. Thank you for bringing this to our attention and for giving me the opportunity to highlight IBM's superiority at the systems level.
technorati tags: IBM, Seagate, Hitachi, HGST, EMC, NetApp, HP, HDS, Sun, Google, CMU, DDM, Fujitsu, MTBF, MTTF, AFR, ARR, JBOD, RAID, Tivoli, SVC, DR550, CDP, FC, SCSI, disk, tape, SAN,
Two weeks ago, I mentioned in my post [Pulse 2008 - Day 2 Breakout sessions
] thatHenk de Ruiter from ABN Amro bank presented his success storyimplementing Information Lifecycle Management (ILM) across hisvarious data centers. I am no stranger to ABN Amro, having helped "ABN" and "Amro" banks merge their mainframe data in 1991. Henk has agreed to let me share with my readers more ofthis success story here on my blog:
Back in December 2005, Henkand his colleagues had come to visit the IBM Tucson ExecutiveBriefing Center (EBC) to hear about IBM products and services. At the time, I was part of our "STG Lab Services" team that performed ILM assessments at client locations. I explained to ABN Amro that the ILM methodology does not requirean all-IBM solution, and that ILM could even provide benefits with their current mix of storage, software and service providers.The ABN Amro team liked what I had to say, andmy team was commissioned to perform ILM assessments atthree of their data centers:
- Amsterdam (Netherlands)
- Sao Paulo (Brazil)
- Chicago, IL (USA)
Each data center had its own management, its owndecision making, and its own set of issues, so we structuredeach ILM assessment independently. When we presented our results,we showed what each data center could do better with their existing mixed bagof storage, software and service providers, and also showed howmuch better their life would be with IBM storage, software andservices. They agreed to give IBM a chance to prove it, and soa new "Global Storage Study" was launched to take the recommendationsfrom our three ILM studies, and flesh out the details to make aglobally-integrated enterprise work for them. Once completed,it was renamed the "Global Storage Solution" (GSS).
Henk summarized the above with "I am glad to see Tony Pearsonin the audience, who was instrumental to making this all happen."As with many client testimonials, he presented a few charts onwho ABN Amro is today, the 12th largest bank worldwide, 8th largest in Europe. They operate in 53 countries and manage over a trillioneuros in assets.
They have over 20 data centers, with about 7 PB of disk, and over20 PB of tape, both growing at 50 to 70 percent CAGR. About 2/3 of theiroperations are now outsourced to IBM Global Services, the remaining 1/3is non-IBM equipment managed by a different service provider.
ABN Amro deployed IBM TotalStorage Productivity Center, variousIBM System Storage DS family disk systems, SAN Volume Controller (SVC), Tivoli StorageManager (TSM), Tivoli Provisioning Manager (TPM), and several other products. Armed with these products, they performed the following:
- Clean Up. IBM uses the term "rationalization" to relate to the assignment of business value, to avoid confusion with theterm "classification" which many in IT relate to identifyingownership, read and write authorization levels. Often, in theinitial phases of an ILM deployment, a portion of the data isdetermined to be eligible for clean up, either to move to a lower-cost tier or deleted immediately. ABN Amro and IBM set a goal to identifyat least 20 percent of their data for clean up.
- New tiers. Rather than traditional "storage tiers" which are often justTier 1 for Fibre Channel disk and Tier 2 for SATA disk, ABN Amroand IBM came up with seven "information infrastructure tiers" thatincorporate service levels, availability and protection status.They are:
- High-performance, Highly-available disk with Remote replication.
- High-performance, Highly-available disk (no remote replication)
- Mid-performance, high-capacity disk with Remote replication
- Mid-performance, high-capacity disk (no remote replication)
- Non-erasable, Non-rewriteable (NENR) storage employinga blended disk and tape solution.
- Enterprise Virtual Tape Library with remote replicationand back-end physical tape
- Mid-performance physical tape
These tiers are applied equally across their mainframe anddistributed platforms. All of the tiers are priced per "primary GB", so any additional capacity required for replication orpoint-in-time copies, either local or remote, are all folded into the base price.ABN Amro felt a mission-critical applicationon Windows or UNIX deserves the same Tier 1 service level asa mission-critical mainframe application. Exactly!
- Deployed storage virtualization for disk and tape. Thisinvolved the SAN Volume Controller and IBM TS7000 series library.
- Implemented workflow automation. The key product here is IBM Tivoli Provisioning Manager
- Started an investigation for HSM on distributed. This would be policy-based space management to migrate lessfrequently accessed data to the TSM pool for Windows or UNIX data.
While the deployment is not yet complete, ABN Amro feels they have alreadyrecognized business value:
- Reduced cost by identifying data that should be stored on lower tiers
- Simplified management, consolidated across all operating systems (mainframe, UNIX, Windows)
- Increased utilization of existing storage resources
- Reduced manual effort through policy-based automation, which can lead to fewer human errors and faster adaptability to new business opportunities
- Standardized backup and other operational procedures
Henk and the rest of ABN Amro are quite pleased with the progress so far,although recent developments in terms of the takeover of ABN AMRO by aconsortium of banks means that the model is only implemented so far in Europe. Further rollout depends on the storage strategy of the new owners. Nonetheless,I am glad that I was able to work with Henk, Jason, Barbara, Steve, Tom, Dennis, Craig and othersto be part of this from the beginning and be able to see it rollout successfully over the years.
For more about what was presented at Pulse 2008 conference, see the videos of the keynotespeakers at [IBM Pulse - YouTube channel]!
technorati tags: IBM, ABN Amro, Henk de Ruiter, merge, mainframe, Tucson, Executive Briefing Center, EBC, STG, Lab Services, ILM, Amsterdam, Netherlands, Sao Paulo, Brazil, Chicago, Global Storage, study, solution, Productivity Center, DS8000, DS4000, SVC, storage tiers, rationalization, NENR, FC, SATA, Windows, UNIX, TS7000, HSM
Over on his Backup Blog
, fellow blogger Scott Waterhouse from EMC has a post titled
[Backup Sucks: Reason #38
]. Here is an excerpt:
Unfortunately, we have not been able to successfully leverage economies of scale in the world of backup and recovery. If it costs you $5 to backup a given amount of data, it probably costs you $50 to back up 10 times that amount of data, and $500 to back up 100 times that amount of data.
If anybody can figure out how to get costs down to $40 for 10 times the amount of data, and $300 for 100 times the amount of data, they will have an irrefutable advantage over anybody that has not been able to leverage economies of scale.
I suspect that where Scott mentions we in the above excerpt, he is referring to EMC in general, with products like
Legato. Fortunately, IBM has scalable backup solutions, using either a hardware approach, or one purely with software.
- Hardware Approach
The hardware approach involves using deduplication hardware technology as the storage pool for IBM Tivoli Storage Manager (TSM). Using this approach, IBM Tivoli Storage Manager would receive data from dozens, hundreds or even thousands
of client nodes, and the backup copies would be sent to an IBM TS7650 ProtecTIER data deduplication appliance, IBM TS7650G gateway, or IBM N series with A-SIS. In most cases, companies have standardized on the operating systems and applications used on these nodes, and multiple copies of data reside across employee laptops. As a result, as you have more nodes backing up, you are able to achieve benefits of scale.
- Software Approach
Perhaps your budget isn't big enough to handle new hardware purchases at this time, in this economy. Have no fear,
IBM also offers deduplication built right into the IBM Tivoli Storage Manager v6 software itself. You can use sequential access disk storage pool for this. TSM scans and identifies duplicate chunks of data in the backup copies, and also archive and HSM data, and reclaims the space when found.
If your company is using a backup software product that doesn't scale well, perhaps now is a good time to switch over to IBM Tivoli Storage Manager. TSM is perhaps the most scalable backup software product in the marketplace, giving IBM an "irrefutable advantage" over the competition.
technorati tags: IBM, Scott Waterhouse, EMC, Legato, Tivoli, TSM, deduplication, ProtecTIER, N series, A-SIS
Continuing my week in Chicago, for the IBM Storage Symposium 2008, I attended several sessions intended to answer the questions of the audience.
In an effort to be cute, the System x team have a "Meet the xPerts" session at their System x and BladeCenter Technical Conference, so the storage side decided to do the same. Traditionally, these have been called "Birds of a Feature", "Q&A Panel", or "Free-for-All". They allow anyone to throw out a question, and have the experts in the room, either
IBM, Business Partner or another client, answer the question from their experience.
- Meet the Experts - Storage for z/OS environments
Here were some of the questions answered:
- I've seen terms like "z/OS", "zSeries" and "System z" used interchangeably, can you help clarify what this particular session is about?
IBM's current mainframe servers are all named "System z", such as our System z9 or System z10. These replace the older zSeries models of hardware. z/OS is one of the six operating systems that run on this hardware platform. The other five are z/VM, z/VSE, z/TPF, Linux and OpenSolaris. The focus of this session will be storage attached and used for z/OS specifically, including discussions of Omegamon and DFSMS software products.
- What can we do to reduce our MIPS-based software licensing costs from our third party vendors?
Consider using IBM System z Integrated Information Processor
- What about 8 Gbps FICON?
IBM has already announced
[FICON Express8] host bus adapter (HBA) cards, that will auto-negotiate to 4Gbps and 2Gbps speeds. If you don't need full 8Gbps speed now, you can
still get the Express8 cards, but put 4/2/1 Gbps SFP ports instead. Currently, LongWave (LW) is only supported to 4km at 8Gbps speed.
- I want to use Global Mirror for my DS8100 to my remote DS8100, but also make test copies of my production data to
an older ESS 800 I have locally. Any suggestions? Yes, consider using FlashCopy to simplify this process.
- I have Global Mirror (GM) running now successfully with DSCLI, and now want to deploy IBM Tivoli Storage Productivity Center for Replication. Is that possible? Yes, Productivity Center for Replication will detect existing GM relationships, and start managing them.
- I have already deployed HyperPAV and zHPF, is there any value in getting Solid-State Drives as well?
HyperPAV and zHPF impact CONN time, but SSD impacts DISC time, so they are mutually complementary.
- How should I size my FlashCopy SE pool? SE refers to "Space Efficient", which stores only the changes
between the source and destination copies of each LUN or CKD volume involved. General recommendation is to start with 20 percent and adjust accordingly.
- How many RAID ranks should I configure per DS8000 extent pool? IBM recommends 4 to 8 ranks per pool.
- Meet the Experts: Storage for Linux, UNIX and Windows distributed systems
This session was focused on storage systems attached to distributed servers, as well as products from Tivoli used to manage them. Here were some of the questions answered:
- When we migrated from Tivoli Storage Manager v5 to v6, we lost our favorite "Operational Reporting" tool. How can we get TOR back? You now get the new Tivoli Common Reporting tool.
- How can we identify appropriate port distribution for multiple SVC node pairs for load balancing?
IBM Tivoli Storage Productivity Center v4.1 has hot-spot analysis with recommendations for Vdisk migrations.
- We tried TotalStorage Productivity Center way back when, but the frequent upgrades were killing us. How has it been lately? It has been much more stable since v3.3, and completely renamed to Tivoli Storage Productivity Center to avoid association with versions 1 and 2 of the predecessor product. The new "lightweight agents" feature of v4.1 resolve many of the problems you were experiencing.
- We have over 1600 SVC virtual disks, how do we handle this in IBM Tivoli Storage Productivity Center? Use the Filter capability in combination with clever naming conventions for your virtual disks.
- How can we be clever when we are limited to only 15 characters? Ok. We understand.
- We are currently using an SSPC with Windows 2003 and 2GB memory, but we are only using the Productivity Center for Replication feature of it. Can we move the DB2 database over to a Windows 2008 server with 4GB of memory?
Consider using the IBM Tivoli Storage Productivity Center for Replication software instead of SSPC for special
circumstances like this.
- We love the XIV GUI, how soon will all other IBM storage products have it also? As with every acquisition,
IBM evaluates if there are technologies from new products that can be carried back to existing products.
- We are currently using 12 ports on our existing XIV, and love it so much we plan to buy a second frame, but are concerned about consuming another 12 ports on our SAN switch. Any suggestions? Yes, use only six ports per frame. Just because you have more ports, doesn't mean you are required to use them.
- We have heard there are concerns from the legal community about using deduplication technology, any ideas how to address that?
Nobody here in the room is a lawyer, and you should consult legal counsel for any particular situation.
None of the IBM offerings intended for non-erasable, non-rewriteable (NENR) data retention records (DR550, WORM tape, N series SnapLock) support dedupe today, and none of IBM's deduplication offerings (TS7650,N series A-SIS,TSM) make any claims for fit-for-purpose for compliance regulatory storage. However, be assured that all of IBM's dedupe technology involves byte-for-byte comparisons so that you never lose any data due to false hash collisions. For all IBM compliance storage, what you write will be read back in the correct sequence of ones and zeros.
technorati tags: IBM, z/OS, System z, DFSMS, Omegamon, z/VM, z/VSE, z/TPF, Linux, OpenSolaris, Tivoli, Storage Manager, TSM, Productivity Center, SVC, XIV, GUI, WORM, DR550, NENR, SnapLock, A-SIS
This week is Thanksgiving holiday in the USA, so I thought a good theme would be things I am thankful for.
I'll start with saying that I am thankful EMC has finally announcedAtmos last week. This was the "Maui" part of the Hulk/Maui rumors we heard over a year ago. To quickly recap, Atmos is EMC's latest storage offeringfor global-scale storage intended for Web 2.0 and Digital Archive workloads. Atmos can be sold as just software, or combined with Infiniflex,EMC's bulk, high-density commodity disk storage systems. Atmos supports traditionalNFS/CIFS file-level access, as well as SOAP/REST object protocols.
I'm thankful for various reasons, here's a quick list:
- It's hard to compete against "vaporware"
Back in the 1990s, IBM was trying to sell its actual disk systems against StorageTek's rumored "Iceberg" project. It took StorageTek some four years to get this project out,but in the meantime, we were comparing actual versus possibility. The main feature iswhat we now call "Thin Provisioning". Ironically, StorageTek's offering was not commercially successful until IBM agreed to resell this as the IBM RAMAC Virtual Array (RVA).
Until last week, nobody knew the full extent of what EMC was going to deliver on the many Hulk/Maui theories. Severalhinted as to what it could have been, and I am glad to see that Atmos falls short of those rumored possibilities. This is not to say that Atmos can't reach its potential, and certainly some of the design is clever, such as offering native SOAP/REST access.
Instead, IBM now can compare Atmos/Infiniflex directly to the features and capabilities of IBM's Scale Out File Services [SoFS], which offers a global-scale multi-site namespace with policy-based data movement, IBM System Storage Multilevel Grid Access Manager[GAM] that manages geographical distrubuted information,and IBM [XIV Storage System] that offers high-density bulk storage.
- Web 2.0 and Digital Archive workloads justify new storage architectures
When I presented SoFS and XIV earlier this year, I mentioned they were designed forthe fast-growing Web 2.0 and Digital Archive workloads that were unique enough to justify their own storage architectures. One criticism was that SoFS appeared to duplicate what could be achieved with dozens of IBM N series NAS boxes connected with Virtual File Manager (VFM). Why invent a new offering with a new architecture?
With the Atmos announcement, EMC now agrees with IBM that the Web 2.0 and DigitalArchive workloads represent a unique enough "use case" to justify a new approach.
- New offerings for new workloads will not impact existing offerings for existing workloads
I find it amusing that EMC is quickly defending that Atmos will not eat into its DMXbusiness, which is exactly the FUD they threw out about IBM XIV versus DS8000 earlier this year. In reality, neither the DS8000 nor the DMX were used much for Web 2.0 andDigital Archive workloads in the past. Companies like Google, Amazon and others hadto either build their own from piece parts, or use low-cost midrange disk systems.
Rather, the DS8000 and DMX can now focus on the workloads they were designed for,such as database applications on mainframe servers.
- Cloud-Oriented Storage (COS)
Just when you thought we had enough terminology already, EMC introduces yet another three-letter acronym [TLA]. Kudos to EMC for coining phrases to help move newconcepts forward.
Now, when an RFP asks for Cloud-oriented storage, I am thankful this phrase will help serve as a trigger for IBM to lead with SoFS and XIV storage offerings.
- Digital archives are different than Compliance Archives
EMC was also quick to point out that object-storage Atmos was different from theirobject-storage EMC Centera. The former being for "digital archives" and the latter for"compliance archives". Different workloads, Different use cases, different offerings.
Ever since IBM introduced its [IBM System Storage DR550] several years ago, EMC Centera has been playing catch-up to match IBM'smany features and capabilities. I am thankful the Centera team was probably too busy to incorporate Atmos capabilities, so it was easier to make Atmos a separate offering altogether. This allows the IBM DR550 to continue to compete against Centera's existingfeature set.
- Micro-RAID arrays, logical file and object-level replication
I am thankful that one of the Atmos policy-based feature is replicating individualobjects, rather than LUN-based replication and protection. SoFS supports this forlogical files regardless of their LUN placement, GAM supports replication of files and medical images across geographical sites in the grid, and the XIV supports this for 1MBchunks regardless of their hard disk drive placement. The 1MB chunk size was basedon the average object size from established Web 2.0 and DigitalArchive workloads.
I tried to explain the RAID-X capability of the XIV back in January, under muchcriticism that replication should only be done at the LUN level. I amthankful that Marc Farley on StorageRap coined the phrase[Micro-RAID array] to helpmove this new concept further. Now, file-level, object-level and chunk-level replication can be considered mainstream.
- Much larger minimum capacity increments
The original XIV in January was 51TB capacity per rack, and this went up to 79TB per rack for the most recent IBM XIV Release 2 model. Several complained that nobody would purchase disk systems at such increments. Certainly, small and medium size businessesmay not consider XIV for that reason.
I am thankful Atmos offers 120TB, 240TB and 360TB sizes. The companies that purchasedisk for Web 2.0 and Digital Archive workloads do purchase disk capacity in these large sizes. Service providers add capacity to the "Cloud" to support many of theirend-clients, and so purchasing disk capacity to rent back out represents revenue generating opportunity.
- Renewed attention on SOAP and REST protocols
IBM and Microsoft have been pushing SOA and Web Services for quite some time now.REST, which stands for [Representational State Transfer] allows static and dynamic HTML message passing over standard HTTP.SOAP, which was originally [Simple Object Access Protocol], and then later renamed to "Service Oriented Architecture Protocol", takes this one step further, allowingdifferent applications to send "envelopes" containing messages and data betweenapplications using HTTP, RPC, SMTP and a variety of other underlying protocols.Typically, these messages are simple text surrounded by XML tags, easily stored asfiles, or rows in databases, and served up by SOAP nodes as needed.
- It's hard to show leadership until there are followers
IBM's leadership sometimes goes unnoticed until followerscreate "me, too!" offerings or establish similar business strategies. IBM's leadership in Cloud and Grid computing is no exception.Atmos is the latest me-too product offering in this space, trying pretty muchto address the same challenges that SoFS and XIV were designed for.
So, perhaps EMC is thankful that IBM has already paved the way, breaking throughthe ice on their behalf. I am thankful that perhaps I won't have to deal with as much FUD about SoFS, GAM and XIV anymore.
technorati tags: IBM, SoFS, XIV, GAM, DS8000, EMC, Atmos, Hulk, Maui, Infiniflex, STK, StorageTek, Iceberg, RVA, thin provisioning, VFM, SOAP, REST, DMX, RAID-X, Micro-RAID
While many are just becoming familiar with the end-user interfaces of Web 2.0, from blogs and wikis to FaceBook and FlickR, fewer may be familiar with the "information infrastructure" of servers and storagebehind the scenes.
Last year, I bought an XO laptop under the One Laptop Per Child [OLPC] foundation's Give-1-Get-1 program and posted my impressions on this blog. One in particular, my post[Printingon XO laptop with CUPS and LPR] showed how to print from the XO laptop over to a network-attached printer.This caught the attention of the OLPC development team, who asked me tohelp them with another project as a volunteer. Before accepting, I had to learn what skills they were really looking for, especially since I do notconsider myself an expert in neither printing nor networking.
(Unlike a regular 9-to-5 job where most people just try to look busy for eight hours a day, doingvolunteer work means being ready to ["roll up your sleeves"] and actuallyaccomplish something. This applies to any kind of volunteer work, from hammering nails for [Habitat for Humanity] to sorting cans at the [Community Food Bank].Best Buy uses the phrase "Results Oriented Work Environment" [ROWE] to describetheir latest program, modeled in part after the mobile workforce policies of Web2.0-enlightened companiesIBM and Sun, but that is perhaps a topic for another blog post!)
Apparently, to support a school full of students with XO laptops, it would be nice to have a few serversthat provide support to manage the class lesson plans, make reading materials and other content available,and keep track of results. What they need is an "information infrastructure"! They decided on two specific servers:
- School Server -- this would run a popular class management system called [Moodle]
- Library Server -- a server for a digital library collection, based on Fedora Commons[16-minute video]
In keeping with OLPC philosophy to use free and open source software[FOSS
], both servers are based on the [LAMP
] platform. LAMP is an acronym for thecombined software bundle of Linux, Apache, MySQL and a Programming language like PHP. The "XS" team working onthe school server wanted me to build a LAMP server and install Moodle to help test the configuration, determinewhat other software is required, and perhaps develop a backup/recovery scenario. Basically, they needed someone with Linux skills to put some hardware and software together.
(I am no stranger to Linux. Back in the 1990s, I was part of the Linux for S/390 team, led the effort to createthe infamous "compatible disk layout" (CDL) that allows z/OS to access ESCON and FICON-attached Linux volumes,took my LPI certification exam, and led a team to validate FCP drivers for our disk and tape storage systems. For an IBMer to volunteer foran Open Source community project, you have to take an "open source" class and get management approval to reviewfor any possible "conflicts of interest". I got this all taken care of, and accepted to help the XS team.)
Building a test environment is similar to baking a cake. You have a recipe, utensils, and ingredients. Here'sa bit of description of each of the ingredients:
Like Windows, the Linux operating system comes in different flavors to run on handhelds, desktops and servers. For servers, IBM tends to focus on Red Hat Enterprise Linux (RHEL) and SUSE Linux Eneterprise Server (SLES). However, the XS team decidedinstead to use [Fedora 7], a community-supported version from Red Hat. Earlier versions of Fedora were known as "Fedora Core", but apparently with version 7, the word "Core" has been dropped. Fedora 7 can be used in either desktop or server mode.
[Apache] is web server software, and half of all web servers on the internet use it. It competes head-on against Micorosofts Internet Information Services (IIS) serverprovided in Windows 2003. The Apache name is partly from thefact that its origins were "a patchy" variant of the NCSA HTTPd 1.3 codebase. Thepopular [IBM HTTP Server] is poweredby Apache, with added support to the rest of the IBM WebSphere software portfolio. The XS team chose Apache v2as the web server platform.
[MySQL] is a relational database management system (RDBMS) software, similar to commercial products like IBM DB2 Universal Database, Oracle DB, or Microsoft SQL Server. The SQL stands for Structured Query Language, developed by IBM in the early 1970s as a standard languageto update and query database tables. MySQL comes in two flavors, MySQL Enterprise for commercial use, and MySQLCommunity, which is community-supported. There are over 10 million instances of MySQL running websites on the internet, which helps explain why Sun Microsystems agreed to acquire MySQL AB company last month.The XS team decided on MySQL 5.0 as the database platform.
To make HTML pages dynamic, including the possibility to add or query database contents, requires programming.A variety of web scripting languages were developed, all starting with the letter "P" to claim to be the programming part of the LAMP platform, including [PHP], Perl, and Python. Later, new programming language frameworks have been developed that do not start with the letter "P", like [Ruby on Rails]. PHP is short for PHP: Hypertext Preprocessor which explains that it pre-processes HTML during web serving,looking for special tags indicating PHP code, allowing programming logic to insert HTML content, such as information extracted from a database.While Python is the language that runs the Sugar interface on the XO laptops, the XS team decided onPHP v5 as the programming language for the server.
As for utensils, you only need a few utilities
- A simple text editor: I go old-school and use the classic "vi" (to learn this editor, see the["Cheat Sheet" method] on IBM Developerworks)
- secure socket shell (SSH): this allows you to access one server from another
- browser access to the internet: when you encounter problems, get error messages, or whatever, it pays to know how to search for things with Google
As for a recipe, the Moodle website spells out some unique details and parameters. For the base LAMP platform,I chose to follow the book [Fedora 7 Unleashed] that has specific chapters on setting up SSH, Apache, MySQL, PHP, Squid and so on. The resultingconfiguration looks like this:
Here were the sequence of events:
- I took an old PC that I wasn't using anymore, backed up the Windows system, and installed Linux on top. Thebook above had a Fedora 7 DVD on the back jacket, but I used the [OLPC LiveCD] that had some values pre-configured.
- Set the IP address static. I set mine to 192.168.0.77 which nobody sees except my other systems.
- My school server is "headless" which means it does not have its own keyboard, video or mouse. It also runs only to Linux run level 3, command line interface only, no graphics.I was able toshare using a KVM switch], but this meant having to remember something on one screen while I was switching over to the other. My Windows XP system has mybrowser connection to the internet to follow instructions or read error messages, so I need that up all thetime. To get around this, on my Windows XP system,I generated SSH public and private keys, copied the public key over to my new Linux system, and used [OpenSSH for Windows] to connect over. Now, on one screen,I have my Windows XP Firefox browser, and a separate command line window that is accessing my Linux schoolserver.
- With SSH up and running, I can now use "vi" to edit files, and issue commands to install or activatethe remaining software. First up, Apache. I got this working, and from Windows XP, verified that going to"http://192.168.0.77" showed the Apache test screen.
- I installed PHP, and tested it with a simple short index.php file.
- I installed MySQL, setup the base "installation databases", and created a test database. Here is whereyou might want to set a password for the MySQL root user, but I chose to do that later for now.
- I installed Moodle. It was smart enough to check that Apache, PHP, and MySQL were operational, andapparently I missed a few special "PHP" modules that had to be linked in. I was able to find them, downloadthem, and get them installed.
- I brought up Moodle, created a "class category" of SCIENCE and a new class "Chemistry 101", and it allworked.
- I also activated Squid, which is a web proxy cache server that stores web pages for faster access.
- Another idea was to activate Samba, to provide CIFS file and print sharing, but I decided to put this off.
I got all of this done last Saturday, start to finish. Now the fun begins. We are going to run throughsome tests, document the procedures, and try to get a system up and running in a remote school in Nepal. Fornow, I have only one XO laptop to simulate what the student sees, and one laptop that can represent eithera teacher's Windows-based laptop, or run QEMU and emulate a second XO laptop.For tuning, I might go through the procedures mentioned on IBM Developerworks "Tuning LAMP"[Part 1, Part 2,Part 3].
For those in the server or storage industry that need to understand Web 2.0 information infrastructure better,building a LAMP server like this can be quite helpful.
technorati tags: XO, OLPC, XS, Moodle, Fedora Commons, LAMP, Linux, Apache, MySQL, PHP, Squid, CIFS, Samba, OpenSSH, vi, QEMU, IBM, FOSS,LPI, CDL, S/390, RHEL, SLES
This week I am in Chicago for the IBM Storage and Storage Networking Symposium, which coincides with the System x and BladeCenter Technical Conference. This allows the 800 attendees to attend both storage or server presentations at their convenience. There were hundreds of sessions, over 20 time slots, so for each time slot, you have 15 or so topics to choose from.Mike Kuhn kicked off the series of keynote sessions. Here's my quick recap of each one:
- Curtis Tearte, General Manager, IBM System Storage
Curtis replaced Andy Monshaw as General Manager for IBM System Storage. His presentation focused on how storage fits into IBM's Dynamic Infrastructure strategy. Some interesting points:
- a billion camera-enabled cell phones were sold in 2007, compared to 450 million in 2006.
- IBM expects that there will be 2 billion internet users by 2011, as well as trillions of "things".
- In the US, there were 2.2 million medical pharmacy dispensing errors resulting for handwritten prescriptions.
- Time wasted looking for parking spaces in Los Angeles consumed 47,000 gallons of gasoline, and generated 730 tons of carbon dioxide.
- In the US, 4.2 billion hours are lost, and 2.9 billion gallons of gas consumed, due to traffic congestion.
- Over the past decade, servers went from 8 watts to 100 watts per $1000 US dollars.
- Data growth appears immune to the economic recession. The digital footprint per person is expected to grow from 1TB today to over 15TB by 2020.
- 10 hours of YouTube videos are uploaded every minute.
- Bank of China manages 380 million bank accounts, processing over 10,000 transactions per second.
At the end of the session, Curtis transitioned from demonstrating his knowledge and passion of storage to his knowledge and passion in his favorite sport: baseball. Chicago is home to both the Cubs and the White Sox.
- Roland Hagan, Vice President Business Line Executive, System x
IBM sets the infrastructure agenda for the entire industry. The Dynamic Infrastructure initiative is not just IT, but a complete end-to-end view across all of the infrastructures in play, including transportation, manufacturing, services and facilities.Companies spent over $60 billion US dollars on servers last year. Of these, 53 percent for x86-based servers, 9 percent for Itanium-based, 26 percent for RISC-based (POWER6, SPARC, etc.), and 11 percent mainframe. Theeconomic downturn has impacted revenues, but the percentages continue about the same.
The dominant deployment model remains one application per server. As a result, power, cooling and management costs have grown tremendously. There are system admins opposed to consolidating server images with VMware, Hyper-V, Xen or other server virtualizaition technologies. Roland referred to these admins as "server huggers".To help clients adopt cloud computing technologies, IBM introduced [Cloudburst] appliances. IBM plans to offer specialized versions for developers, for service providers, and for enterprises.
IBM's Enterprise-X Architecture is what differentiates IBM's x86-based servers from all the competitors, surrounding Intel and AMD processors with technology that provides distinct advantages. For example, to support server virtualization, IBM's eX4 provides support for more memory, which often is more critical than CPU resources when deploying large number of guest OS images. IBM System x servers have an integrated management module (IMM) and was the first to change over from BIOS to the new Unified Extensible Firmware Interface [UEFI] standard.
IBM servers offer double the performance, consume half the power, and cost a third less to manage, than comparably priced servers from competitors. Of the top 20 more energy efficient server deployments, 19 are from IBM. Roland cited customer reference SciNet, a 4000-server supercomputer with 30,000 cores based on IBM [iDataPlex] servers. At 350 TeraFLOPs it is ranked #16 fastest supercomputer in the world, and #1 in Canada. With apower usage effectiveness (PUE) less than 1.2, it also is very energy efficient. This means that for every 12 watts of electricity going in to the data center, 10 watts are used for servers, storage and networking gear, andonly 2 watts used for power and cooling. Traditional data centers have PUE around 2.5, consuming 25 watts total for every 10 watts used by servers, storage and networking gear.
- Clod Barrera, Distinguished Engineer, Chief Technical Strategist for IBM System Storage
Clod presented trends and directions for disk and tape technology, disk and tape systems, and the direction towards cloud computing.
Whew! A lot to think about!
technorati tags: IBM, Chicago, Storage Symposium, System x, BladeCenter, Curtis Tearte, Roland Hagan,Andy Monshaw, baseball, Intel, AMD, IMM, UEFI, supercomputer, PUE, Clod Barrera, SciNet, Canada
Last week, Steve Jobs demonstrated the latest evidence that theinmates are running the asylum
over at Apple
I wasn't at the event, but thought it would be good to explain some basic concepts ofInformation Lifecycle Management (ILM),using the files on my iPod as an example. (Disclosure: IBM makes the technology inside many of Apple's computers, and so IBMers get to buy Appleproducts at employee prices. I own a Mac Mini based on IBM's POWER4 processor, and an iPod Photo 60GB model).
I have 20,000 MP3 music files, representing 106GB of data. This fits nicely on my 250GB external disk system attached to my Mac Mini, but won't all fit on my little 60GB iPod. I needed a way to decide what music I keep on bothmy iPod and Mac Mini, and which I keep only on my Mac Mini. When I am traveling, I am able to listen only to the musicin the first group, but when I am at home, I am able to listen to all my music in both groups.(Another disclosure: I use my Tivo connected to my LAN to play all my MP3 music through my home stereo system.I had my entire house wired with Cat5 to make this possible.)
Apple's iTunes software lets me decide which MP3 files are copied to my iPod using "playlists". A playlist is a list of songs. Fixed playlists are created manually, each song copied to its list in a specific order. Smart playlists are createdautomatically, via policy. I give it the criteria, and it finds the songs for me. If I import a new music CD,none of the songs will be added to any fixed playlists, but could be added to my smart playlists if I set the policiescorrectly. Apple iTunes supports both "include" and "exclude" methodologies.
I use primarily smart playlists, based on genre and rating. I have tried to keep the number of genre down to a small manageable list:
- Rhythm & Blues
- Hip Hop
Of course, what I have for genre may not match what's in theGracenote
database, so I sometimes have to makeupdates to match my convention. I've picked these based on my different "applications" for my music. For example, I listen to Ambient music to help me fall asleep on airplanes, but Rock when I exercise at the gym.
Next, I use the ratings from one to five stars. The advantage to the rating is that I can change them on-the-fly directly on my iPod. All other "metadata" has to be entered only from the keyboard of my Mac Mini.
|*||Files for Mac Mini only, not copied to my iPod|
|**||Non-mix, copied to my iPod, but typically spoken words, such as language lessons|
|***||Mix, music to include in my music mixes|
|****||Keep on my iPod, but re-evaluate|
So, I have five smart playlists, "One Star", "Two Stars", etc. for each rating, and have decidedto keep only the 2, 3, 4 and 5 star songs on my iPod, by simply putting check marks on those playlists to copythem over. I have about 50 songs with 5 stars, and 8000 with 3 stars, and the rest in the other categories,leaving me a few GB to spare.
I also have playlists for each genre, "Rock mix", "Pop Mix", "Ambient Mix", etc. where I have selected thosethat match the genre, AND have 3, 4 or 5 stars. In this manner, I can listen to a mix. If I find a song mis-classified for that genre, I change it to four stars, which serves as myreminder to re-evaluate when I am back at home on my Mac Mini. If I don't want a song in my mix, I just lowerit to 2 stars. I want it off my iPod altogether, I lower it to one star.
This method is simple enough, and allows me to enjoy my music right away, and more effectively, without having to wait for completely finishing my classification process.
Next week, I'm traveling to Africa (purely vacation, not related to my job, my senator, or myinvolvement in anycharitable organizations). My Canon camera has only a 1GB IBM Microdrive, but I am able to offloadmy pictures to my iPod, connected via USB cable, and review the pictures on the little 2-inch screen. By simply "unchecking" my 2-star and 3-starplaylists, and checking only those mixes I plan to take with me, I was able to clear 17GB of space, plenty ofroom for all my photos of elephants and giraffes, but still plenty of music to listen to. Thanks to my simple methodology, I was able to do this with minimal effort, and willhave no problem putting all my music back when I return.
When evaluating an ILM process, many people are overwhelmed by their fear of the classification process, when in reality it doesn't have to be so complicated.
Is there an "iTunes" for the storage in your datacenter? Yes! It's called IBM TotalStorage Productivity Center. It can help you list and classify all the files in your IT environment,including files in your internal disks inside the servers, your NAS and SAN external disk systems, across both IBM and non-IBM hardware.It's a good thing to consider as part of your overall ILM strategy.
technorati tags: Apple, Steve Jobs, inmates, running, asylum, IBM, information, lifecycle, management, iPod, music, genre, star, rating, iTunes, datacenter, TotalStorage, Productivity Center, NAS, SAN, ILM
Many people have asked me if there was any logic with the IBM naming convention of IBM Systems branded servers. Here's your quick and easy cheat sheet:
- System x -- "x" for cross-platform architecture. Technologies from our mainframe and UNIX servers were brought into chips that sit next to the Intel or AMD processors to provide a more reliable x86 server experience. For example, some models have a POWER processor-based Remote Supervisor Adapter (RSA).
- System p -- "p" for POWER architecture.
- System z -- "z" for Zero-downtime, zero-exposures. Our lawyers prefer "near-zero", but this is about as close as you get to ["six-nines" availability] in our industry, with the highest level of security and encryption, no other vendor comes close, so you get the idea.
But what about the "i" for System i? Officially, it stands for "Integrated" in that it could integrate different applications running on different operating systems onto a [COMMON
] platform. Options were available to insert Intel-based processor cards that ran Windows, or attach special cables that allowed separate System x servers running Windows to attach to a System i. Both allowed Windows applications to share the internal LAN and SAN inside the System i machine. Later, IBM allowed [AIX on System i
] and [Linux on Power
] operating systems to run as well.
From a storage perspective, we often joked that the "i" stood for "island", as most System i machines used internal disk, or attached externally to only a fewselected models of disk from IBM and EMC that had special support for i5/OS using a special, non-standard 520-byte disk block size. This meant only our popular IBM System Storage DS6000 and DS8000 series disk systems were available. This block size requirement only applies to disk. For tape, i5/OS supports both IBM TS1120 and LTO tape systems. For the most part,System i machines stood separate from the mainframe, and the rest of the Linux, UNIX and Windows distributed serverson the data center floor.
Often, when I am talking to customers, they ask when will product xyz be supported on System z or System i?I explained that IBM's strategy is not to make all storage devices connect via ESCON/FICON or support non-standard block sizes, but rather to get the servers to use standard 512-byte block size, Fibre Channel and other standard protocols.(The old adage applies: If you can't get Mohamed to move to the mountain, get the mountain to move to Mohamed).
On the System z mainframe, we are 60 percent there, allowing three of the five operating systems (z/VM, z/VSE and Linux) to access FCP-based disk and tape devices. (Four out of six if you include [OpenSolaris for the mainframe])But what about System i? As the characters on the popular television show [LOST] would say: It's time to get off the island!
Last week, IBM announced the new [i5/OS V6R1 operating system] with features that will greatly improve the use of external storage on this platform. Check this out:
- POWER6-based System i 570 model server
Our latest, most powerful POWER processor brought to the System i platform. The 570 model will be the first in the System i family of servers to make use of new processing technology, using up to 16 (sixteen!) POWER6 processors (running at 4.7GHZ) in each machine.The advantage of the new processors is the increased commercial processing workload (CPW) rating, 31 percent greater than the POWER5+ version and 72 percent greater than the POWER5 version. CPW is the "MIPS" or "TeraFlops" rating for comparing System i servers.Here is the[Announcement Letter].
- Fibre Channel Adapter for System i hardware
That's right, these are [Smart IOAs], so an I/O Processor (IOP) is no longer required! You can even boot the Initial Program Load (IPL) direclty from SAN-attached tape.This brings System i to the 21st century for Business Continuity options.
- Virtual I/O Server (VIOS)
[VirtualI/O Server] has been around for System p machines, but now available on System i as well. This allows multiplelogical partitions (LPARs) to access resources like Ethernet cards and FCP host bus adapters. In the case of storage, the VIOS handles the 520-byte to 512-byte conversion, so that i5/OS systems can now read and write to standard FCP devices like the IBM System Storage DS4800 and DS4700 disk systems.
- IBM System Storage DS4000 series
Initially, we have certified DS4700 and DS4800 disk systems to work with i5/OS, but more devices are in plan.This means that you can now share your DS4700 between i5/OS and your other Linux, UNIX and Windowsservers, take advantage of a mix of FC and SATA disk capacities, RAID6 protection, and so on.
- IBM PowerVM
To call [IBM PowerVM] the "VMware for the POWER architecture" would not do it quite justice. In combination with VIOS, IBM PowerVM is able to run a variety of AIX, Linux and i5/OS guest images.The "Live Partition Mobility" feature allows you to easily move guest images from one system to another, while they are running, just like VMotion for x86 machines.
And while we are on the topic of x86, PowerVM is also able to represent a Linux-x86 emulation base to run x86-compiled applications. While many Linux applications could be re-complied from source code for the POWER architecture "as is", others required perhaps 1-2 percent modification to port them over, and that was too much for some software development houses. Now, we can run most x86-compiled Linux application binaries in their original form on POWER architecture servers.
- BladeCenter JS22 Express
The POWER6-based [JS22 Express blade] can run i5/OS, taking advantage of PowerVM and VIOS to access all of the BladeCenterresources. The BladeCenter lets you mix and match POWER and x86-based blades in the same chassis, providing theultimate in flexibility.
Now that's exciting!
technorati tags: IBM, System x, System p, System i, System z, island, COMMON, AIX, Linux, POWER, POWER6, Windows, EMC, DS6000, DS8000, TS1120, LTO, ESCON, FICON, 520-byte, z/VM, z/VSE, z/OS, z/TPF, OpenSolaris, mainframe, LOST, CPW, x86, VMware, VMotion, BladeCenter, JS22, i5/OS, V6R1, PowerVM, VIOS, LPAR, DS4700, DS4800, LTO, disk, SAN, tape, storage
Dave Hitz from Network Appliance has a wonderful discussion of "branding": What do Marketing People Mean When They Say Brand?
A lot of people ask me about IBM branding, as we have recently changed brands. In the past we had two separate brands, one for servers (eServer) and one for storage (TotalStorage). These would be fine if we wanted to promote their independence, but customers today want synergy between servers and storage, they want systems that work well together.
Last year, in response to market feedback, we crated a new brand, "IBM Systems" and put all the server and storage product lines under one roof. Over time, we will transition from TotalStorage to System Storage naming. This will occur with new products, and major versions of existing products.
Two other phrases you will hear in the names of our offerings are "Virtualization Engine" and "Express". These are portfolio identifiers. The Virtualization Engine identifier was created to emphasize our leadership in system virtualization, and we have products that span product lines with this identifier.
The Express identifier was created to emphasize our focus on Small and Medium sized business (SMB). It spans not just servers and storage, but across other offerings from other IBM divisions.
Of course, just renaming products and services isn't enough. Systems don't work together just because they have similar names, are covered in similar "Apple white" plastic, or have similar black bezels. Obviously, thoughtful and collaborative design are needed, with the appropriate amounts of engineering and testing. IBM is aligning its server and storage development so that the IBM Systems brand keeps its promise.
technorati tags: Dave Hitz, NetApp, marketing, brand, TotalStorage, eServer, IBM Systems, Virtualization Engine, IBM, Express, SMB, Apple white, SMB
With price and joy, I shipped my baby off today. My "baby" in this case was an [XS School Server
]that I built and configured with software as a platform to developan [Educational Blogging System
] for[Proyecto Ceibal
] who are the "One Laptop Per Child" groupin Uruguay [OLPC Uruguay
(Earlier this year, I build a test XS School Server that was used to help and support [OLPC Nepal] by working with their local NGO team[OLE Nepal]. I wrote about this back in Februaryin my post [Understandingthe LAMP platform for Web 2.0 workloads].)
Based on this success, and perhaps because I am also fluent in Spanish, I was asked to help with Proyecto Ceibal, the team for OLPC Uruguay. Normally theXS school server resides at the school location itself, so that even if the internet connection is disrupted or limited, the school kids can continue to access each other and the web cache content until internet connection is resumed.However, with a diverse developmentteam with people in United States, Uruguay, and India, we first looked to Linux hosting providers that wouldagree to provide free or low-cost monthly access. We
spent (make that "wasted") the month of May investigating.Most that I talked to were not interested in having a customized Linux kernel on non-standard hardware on their shop floor, and wanted instead to offer their own standard Linux build on existing standard servers, managed by theirown system administrators, or were not interested in providing it for free. Since the XS-163 kernel is customizedfor the x86 architecture, it is one of those exceptions where we could not host it on an IBM POWER or mainframe as a virtual guest.
This got picked up as an [idea] for the Google's[Summer of Code] and we are mentoring Tarun, a 19-year-old student to actas lead software developer. However, summer was fast approaching, and we wanted this ready for the next semester. In June, our project leader, Greg, came up with a new plan. Build a machine and have it connected at an internet service provider that would cover the cost of bandwidth, and be willing to accept this with remote administration. We found a volunteer organization to cover this -- Thank you Glen and Vicki!
We found a location, so the request to me sounded simple enough: put together a PC from commodity parts that meet the requirements of the customizedLinux kernel, the latest release being called [XS-163]. The server would have two disk drives, three Ethernet ports, and 2GB of memory; and be installed with the customized XS-163 software, SSHD for remote administration, Apache web server, PostgreSQL database and PHP programming language.Of course, the team wanted this for as little cost as possible, and for me to document the process, so that it could be repeated elsewhere. Some stretch goals included having a dual-boot with Debian 4.0 Etch Linux for development/test purposes, an alternative database such as MySQL for testing, a backup procedure, and a Recover-DVD in case something goes wrong.
Some interesting things happened:
- The XS-163 is shipped as an ISO file representing a LiveCD bootable Linux that will wipe your system cleanand lay down the exact customized software for a one-drive, three-Ethernet-port server. Since it is based on Red Hat's Fedora 7 Linux base, I found it helpful to install that instead, and experiment moving sections of code over.This is similar to geneticists extracting the DNA from the cell of a pit bull and putting it into the cell for a poodle. I would not recommend this for anyone not familiar with Linux.
I also experimented with modifying the pre-built XS-163 CD image by cracking open the squashfs, hacking thecontents, and then putting it back together and burning a new CD. This provided some interesting insight, but in the end was able to do it all from the standard XS-163 image.
- Once I figured out the appropriate "scaffolding" required, I managed to proceed quickly, with running versionsof XS-163, plain vanilla Fedora 7, and Debian 4, in a multi-boot configuration.
- The BIOS "raid" capability was really more like BIOS-assisted RAID for Windows operating system drivers. This"fake raid" wasn't supported by Linux, so I used Linux's built-in "software raid" instead, which allowed somepartitions to be raid-mirrored, and other partitions to be un-mirrored. Why not mirror everything? With two160GB SATA drives, you have three choices:
- No RAID, for a total space of 320GB
- RAID everything, for a total space of 160GB
- Tiered information infrastructure, use RAID for some partitions, but not all.
The last approach made sense, as a lot of of the data is cache web page images, and is easily retrievable fromthe internet. This also allowed to have some "scratch space" for downloading large files and so on. For example,90GB mirrored that contained the OS images, settings and critical applications, and 70GB on each drive for scratchand web cache, results in a total of 230GB of disk space, which is 43 percent improvement over an all-RAID solution.
- While [Linux LVM2] provides software-based "storage virtualization" similar to the hardware-based IBM System Storage SAN Volume Controller (SVC), it was a bad idea putting different "root" directories of my many OS images on there. With Linux, as with mostoperating systems, it expects things to be in the same place where it last shutdown, but in a multi-boot environment, you might boot the first OS, move things around, and then when you try to boot second OS, it doesn'twork anymore, or corrupts what it does find, or hangs with a "kernel panic". In the end, I decided to use RAIDnon-LVM partitions for the root directories, and only use LVM2 for data that is not needed at boot time.
- While they are both Linux, Debian and Fedora were different enough to cause me headaches. Settings weredifferent, parameters were different, file directories were different. Not quite as religious as MacOS-versus-Windows,but you get the picture.
- During this time, the facility was out getting a domain name, IP address, subnet mask and so on, so I testedwith my internal 192.168.x.y and figured I would change this to whatever it should be the day I shipped the unit.(I'll find out next week if that was the right approach!)
- Afraid that something might go wrong while I am in Tokyo, Japan next week (July 7-11), or Mumbai, India the following week (July 14-18), I added a Secure Shell [SSH] daemon that runs automaticallyat boot time. This involves putting the public key on the server, and each remote admin has their own private key on their own client machine.I know all about public/private key pairs, as IBM is a leader in encryption technology, and was the first todeliver built-in encryption with the IBM System Storage TS1120 tape drive.
- To have users have access to all their files from any OS image required that I either (a) have identical copieseverywhere, or (b) have a shared partition. The latter turned out to be the best choice, with an LVM2 logical volumefor "/home" directory that is shared among all of the OS images. As we develop the application, we might findother directories that make sense to share as well.
- For developing across platforms, I wanted the Ethernet devices (eth0, eth1, and so on) match the actual ports they aresupposed to be connected to in a static IP configuration. Most people use DHCP so it doesn't matter, but the XSsoftware requires this, so it did. For example, "eth0" as the 1 Gbps port to the WAN, and "eth1/eth2" as the two 10/100 Mbps PCI NIC cards to other servers.Naming the internet interfaces to specific hardware ports wasdifferent on Fedora and Debian, but I got it working.
- While it was a stretch goal to develop a backup method, one that could perform Bare Machine Recovery frommedia burned by the DVD, it turned out I needed to do this anyways just to prevent me from losing my work in case thingswent wrong. I used an external USB drive to develop the process, and got everything to fit onto a single 4GB DVD. Using IBM Tivoli Storage Manager (TSM) for this seemed overkill, and [Mondo Rescue] didn't handle LVM2+RAID as well as I wanted, so I chose [partimage] instead, which backs up each primary partition, mirrored partition, or LVM2 logical volume, keeping all the time stamps, ownerships, and symbolic links in tact. It has the ability to chop up the output into fixed sized pieces, which is helpful if you are goingto burn them on 700MB CDs or 4.7GB DVDs. In my case, my FAT32-formatted external USB disk drive can't handle files bigger than 2GB, so this feature was helpful for that as well. I standardized to 660 GiB [about 692GB] per piece, sincethat met all criteria.
(The mainframe equivalent is DFSMShsm or DFSMSdss DUMP, which by the way can be used with Linux for System z DASD CKD partitions. See this helpful[HOWTO back up your Linux partitions and volumes through z/OS] guide.)
- The folks at [SysRescCD] saved the day. The standard "SysRescueCD" assigned eth0, eth1, and eth2 differently than the three base OS images, but the nice folks in France that write SysRescCD created a customized[kernel parameter that allowed the assignments to be fixed per MAC address ] in support of this project. With this in place, I was able to make a live Boot-CD that brings up SSH, with all the users, passwords,and Ethernet devices to match the hardware. Install this LiveCD as the "Rescue Image" on the hard disk itself, and also made a Recovery-DVD that boots up just like the Boot-CD, but contains the 4GB of backup files.
For testing, I used Linux's built-in Kernel-based Virtual Machine [KVM]which works like VMware, but is open source and included into the 2.6.20 kernels that I am using. IBM is the leadingreseller of Vmware and has been doing server virtualization for the past 40 years, so I am comfortable with thetechnology. The XS-163 platform with Apache and PostgreSQL servers as a platform for [Moodle], an open source class management system, and the combination is memory-intensive enough that I did not want to incur the overheads running production this manner, but it wasgreat for testing!
With all this in place, it is designed to not need a Linux system admin or XS-163/Moodle expert at the facility. Instead, all we need is someone to insert the Boot-CD or Recover-DVD and reboot the system if needed.
Just before packing up the unit for shipment, I changed the IP addresses to the values they need at the destination facility, updated the [GRUB boot loader] default, and made a final backup which burned the Recover-DVD. Hopefully, it works by just turning on the unit,[headless], without any keyboard, monitor or configuration required. Fingers crossed!
So, thanks to the rest of my team: Greg, Glen, Vicki, Tarun, Marcel, Pablo and Said. I am very excited to bepart of this, and look forward to seeing this become something remarkable!
technorati tags: XS School Server, Proyecto, Ceibal, OLPC, Uruguay, OLE, Nepal, LAMP, Web2.0, Google, Summer of Code, SSH, sshd, Apache, PostgreSQL, PHP, Red Hat, Fedora, Debian, Linux, Ethernet, BIOS, RAID, fakeraid, LiveCD, Boot-CD, Recover-DVD, DFSMS, DFSMShsm, DFSMSdss, DUMP, mainframe, LVM2, SVC, TSM, GRUB, Mondo Rescue, partimage, SysRescCD, KVM, GRUB
Jon Toigo has a funny cartoon on his post, [As I Listen to EMC Brag on “New” Functionality…
]. Basically, it pokes fun that many of us bloggers argue which vendor was first to introduce some technology or another. We all do this, myself included.
Recently, Claus Mikkelsen's, currently with HDS, [brought up accurately some past history from the 1990s], which is before many storage bloggers hired on with their current employers. Claus and I worked together for IBM back then, so I recognized many of the events he mentions that I can't talk about either. In many cases, IBM or HDS delivered new features before EMC.
I've been reading with some amusement as fellow blogger Barry Burke asked Claus a series of questions about Hitachi's latest High Availability Manager (HAM) feature. Claus was too busy with his "day job" and chose to shut Barry down. Sadly, HDS set themselves up for ridicule this round, first by over-hyping a function before its announcement, and then announcing a feature that IBM and EMC have offered for a while. The problem and confusion for many is that each vendor uses different terminology. Hitachi's HAM is similar to IBM's HyperSwap and EMC's AutoSwap. The implementations are different, of course, which is often why vendors are often asked to compare and contrast one implementation to another.
In his latest response,[how to mind the future of a mission-critical world], Barry reports that several HDS bloggers now censor his comments.That's too bad. I don't censor comments, within reason, including Barry's inane questions about IBM's products, and am glad that he does not censor my inane questions to him about EMC products in return. The entire blogosphere benefits from these exchanges, even if they are a bit heated sometimes.
We all have day jobs, and often are just too busy, or too lazy, to read dozens or hundreds of pages of materials, if we can even find them in the first place. Not everyone has the luxury of a "competitive marketing" team to help do the research for you, so if we can get an accurate answer or clarification about a product that is generally available directly from a vendor's subject matter expert, I am all for that.
technorati tags: IBM, Jon Toigo, HDS, Claus Mikkelsen, EMC, Barry Burke, HAM
Continuing my week in Chicago, I decided to attend some of the presentations from the System x side. This is the advantage of running both conferences in the same hotel, attendees can choose how many of each they want to participate in.
Wayne Wigley, IBM Advanced Technical Support (ATS), presented a series of presentations on different server virtualization offerings available for System x and BladeCenter servers. I am very familiar with virtualization implemented on System z mainframes, as well as IBM's POWER systems, and have working knowledge of Linux KVM and Xen, so I was well prepared to handle hearing the latest about Microsoft's Hyper-V and VMware's Vsphere version 4.
- Microsoft Hyper-V 2008
Hyper-V can run as part of Windows 2008, are standalone on its own.Different levels of Windows 2008 include licenses for different number of Windows virtual machines (VMs).Windows Server 2008 Standard includes 1 Windows VM, Enterprise includes 4 Windows VMs, and the Datacenter edition includes unlimited number of Windows VMs. If you want to run more Window VMs than come included, you need to pay extra for each additional one. For example, to run 10 Windows VMs on a 2-socket server would cost about $9000 US dollars on Standard but only $6000 US dollars on Datacenter edition (list prices from Microsoft Web site).
Unlike VMware, which takes a monolithic approach as hypervisor, Hyper-V is more like Xen with a microkernelized approach. This means you need a "parent" guest OS image, and the rest of the Guest OS images are then considered "child" images.These child images can be various levels of Windows, from Windows XP Pro to Windows Server 2008, Xen-enabled Linux, or even a non-hypervisor-aware OS.The "parent" guest OS image provides networking and storage I/O services to these "child" images.For the hypervisor-aware versions of Windows and Linux, Hyper-V allows optimized access to the hypervisor, "synthetic devices", and hypercalls. Synthetic devices present themselves as network devices, but only serve to pass data along the VMBus to other networking resources. This process does not require software emulation, and therefore offers higher performance for virtual machines and lower host system overhead.For non-hypervisor-aware OS images, Hyper-V provides device emulation through the "parent" image, which is slower.
Microsoft System Center Virtual Machine Manager (SCVMM) can manage both Hyper-V and VMware VI3 images.Wayne showed various screen shots of the GUI available to manage Hyper-V images.In standalone mode, you lose the nice GUI and management console.
Hyper-V supports external, internal and private virtual LANs (VLAN). External means that VMs can communicate with the outside world over standard ethernet connections. Internal means that VMs can communicate with "parent" and "child" guest images on the same server only. Private means that only "child" guests can communicate with other "child" images.
Hyper-V supports disk attached via IDE, SATA, SCSI, SAS, FC, iSCSI, NFS and CIFS. One mode is "Virtual Hard Disk" (VHD) similar to VMware VMDK files. The other is "pass through" mode, which are actual disk LUNs accessed natively. VHDs can be dynamic (thin provisioned), fixed (fully allocated), or differencing. The concept of differencing is interesting, as you start with a base read-only VHD volume image, and have a separate "delta" file that contains changes from the base image.
Some of the key features of Hyper-V 2008 are:
- Being able to run concurrently 32-bit and 64-bit versions of Linux and Windows guest images
- Support for 64 GB of memory and 4-way symmetric multiprocessing (SMP) per VM
- Clustering for High Availability and Quick Migration of VM images
- Live backup with integration with Microsoft's Volume Shadow Copy Services (VSS)
- Virtual LAN (VLAN) support, and Virtual and Pass-through physical disk support
- A clever VMbus, virtual service parent/client approach to sharing hardware
- Optimized performance options for hypervisor-aware versions of Windows and Linux, and emulated supportfor non-hypervisor-aware OS images.
- VMware Vsphere v4.0
This was titled as an "Overview" session, but really was an "Update" session on the newest features of this release. The big change appears to be that VMware added "v" in front of everything.
- Under vCompute, there are some new features on VMware's Distributed Resource Scheduler (DRS) which includes recommended VM migrations. Dynamic Power Management (DPM) will move VMs during periods of low usageto consolidate onto fewer physical servers so as to reduce energy consumption.
- Under vStorage, vSphere introduces an enhanced Plugable Storage Architecture (PSA), with supportfor Storage Array Type Plugins (SATP) and Path Selection Plugins (PSP). This vStorage API allows forthird party plugins for improved fault-tolerance and complex I/O load balancing algorithms. This releasealso has improved support for iSCSI, including Challenge-Handshake Authentication Protocol (CHAP) support.Similar to Hyper-V's dynamic VHD, VMware supports "thin provisioning" for their virtual disk VMDK files.A feature of "Storage Vmotion" allows conversion between "thick" and "thin" provisioning formats.
The vStorage API for Data Protection provide all the features of VMware Consolidated Backup (VCB). The APIprovides full, incremental and differential file-level backups for Windows and Linux guests, including supportfor snapshots and Volume Shadow Copy Services (VSS) quiescing.
VMware introduces direct I/O pass-through for both NIC and HBA devices. While thisallows direct access to SAN-attached LUNs similar to Hyper-V, you lose a lot of features like Vmotion, High Availability and Fault Tolerance. Wayne felt that these restrictions are temporary, that hopefully VMwarewill resolve this over the next 12 months.
- Under vNetwork, VMware has virtual LAN switches called vSwitches. This includes support for IPv6and VLAN offloading.
The vSphere server can now run with up to 1TB of RAM and 64 logical CPUs to support up to 320 VM guest images.Each VM can have up to 255GB RAM and up to 8-way SMP.Vsphere ESX 4 introduces a new virtual hardware platform called VM Hardware v7. While Vsphere 4.0 can run VMs from ESX 2 and ESX 3, the problem is if you have new VMs based on this newer VM Hardware v7, you cannot run them on older ESX versions.
Vsphere comes in four sizes: Standard, Advanced, Enterprise, and Enterprise Plus, ranging in list price from $795 US dollars to $3495 US dollars.
While IBM is the #1 reseller of VMware, we also are proud to support Hyper-V, Xen, KVM and other similar products.Analysts expect most companies will have two or more server virtualization solutions in their data center, and it is good to see that IBM supports them all.
technorati tags: IBM, Wayne Wigley, ATS, Hyper-V, Microsoft, SCVMM, SMP, VLAN, VMware, DRS, DPM, Vsphere, Vmotion, Xen, KVM, Linux, Windows, server virtualization
Chuck Hollis makes some excellent points about Green Data Center Goes Marketing Mainstream
. He does a great job summarizing EMC's strategy in this area:
- Use VMware to virtualize your x86-based servers
- Use more efficient disk media, such as high-capacity SATA disk drives
Both are great recommendations, but why limit yourself to what EMC offers? Your x86-based machines are only a subset of your servers,and disk is only a subset of your storage. IBM takes a more holistic approach, looking at the entire data center.
- VMware is a great product, and IBM is its top reseller. But in addition to VMware, there are other solutions for the x86-based servers, like Xen and Microsoft Virtual Server. IBM's System p, System i, and System z product lines all support logical partitioning.
To compare the energy effectiveness of server virtualization, consider a metric that can apply across platforms. For example, for an e-mail server, consider watts per mailbox. If you have, say, 15,000 users, you can calculate how many watts you are consuming to manage their mailboxes on your current environment, and compare that with running them on VMware, or logical partitions on other servers. Some people find it surprising that it is often more cost-effective, and power-efficient, to run workloads on mainframe logical partitions (LPARs) than a stack of x86 servers running VMware.
- More efficient Media
- SATA and FATA disks support higher capacities, and run at slower RPM speeds, thus using fewer watts per terabyte.A terabyte stored on 73GB high-speed 15K RPM drives consumes more watts than the same terabyte stored using 500GB SATA.Chuck correctly identifies that tape is more power-efficient than disk, but then argues that paper is more power-efficient than tape. But paper is not necessarily more efficient than tape.
ESG analyst Steve Duplessie divides up data betweenDynamic vs. Persistent. The best place to put dynamic data is on disk, and here is where evaluation of FC/SAS versus SATA/FATA comes into play.Persistent data, on the other hand, can be stored on paper, microfiche, optical or tape media. All of these shelf-resident media consume no electricity, nor generate any heat that would require additional cooling.
A study by scientists at the Lawrence Berkeley National Laboratory titled High-Tech Means High-Efficiency: The Business Case for Energy Management in High-Tech Industries indicates thatData centers consume 15 to 100 times more energy per square foot than traditional office space. Storing persistent data in traditional office space can save a huge amount of energy. Steve Duplessie feels the ratio of dynamic to persistent data is 1:10 today, but is likely to grow to 1:100 in the near future, raising the demand for energy-efficient storage of persistent data ever more important to our environment.
Data centers consume nearly 5000 Megawatts in the USA alone, 14000 Megawatts worldwide. To put that in perspective, the country of Hungary I was in last week can generate up to 8000 Megawatts for the entire country (and they were using 7400 Megawatts last week as a result of their current heat wave, causing them grave concern).
Back in the 1990's, one of the insurance companies IBM worked with kept data on paper in manila folders, and armiesof young adults in roller skates were dispatched throughout the large warehouses of shelves to get the appropriate folder in response to customer service inquiries. Digitizing this paper into electronic format greatly reduced the need for this amount of warehouse space, as well as improved the time to retrieve the data.
A typical file storage box (12 inch x 12 inch x 18 inch) containing typed pages single-spaced, double-sided, 12 point font could hold perhaps 100MB. The same box could hold a hundred or more LTO or 3592 tape cartridges, each storing hundreds of GB of information. That's a million-to-one improvement of space-efficiency, and from a watts-per-TB basis, translates to substantial improvement in standard office air conditioning and lighting conditions.
To learn more about IBM's Project Big Green, watch thisintroductory video
which used Second Life for the animation.
technorati tags: IBM, EMC, Chuck Hollis, VMware, FC, SAS, SATA, FATA, disk, storage, logical partition, energy, power, cooling, Steve Duplessie, dynamic, persistent, data, Lawrence Berkeley National Laboratory, megawatt, paper, optical, microfiche, LTO, 3592, Project Big Green, Secondlife
Yesterday's post [Software Programmers as Bees
]was not meant as "career advice", but certainly I got some interesting email as if it was.Orson Scott Card was poking fun at the culture clash between software programmers andmanagement/marketers, and I gave my perspective, having worked both types of jobs.
This is June. Many students are graduating from high school or college and lookingfor jobs. Some of these might be jobs just for the summer to make some spending money,and others mights be jobs like internships to explore different career paths. I found both programming and marketing are rewarding and interesting work, but each person is different.
There are a variety of ways to find out what your personality traits are,and then focus on those jobs or career paths that are best for those strengths. Hereis an online [Typology Test] based onthe work of psychologists Carl Jung and Isabel Myers-Briggs. The result is a four-letterscore that represents 16 possible personalities. For example, mine is "ENTP",which stands for "Extroverted, Intuitive, Thinking, Perceiving". You can find out otherfamous people that match your personality type. For ENTP, I am lumped together withfellow master inventor Thomas Edison, fellow author Lewis Carrol (Alice in Wonderland), Cooking great Julia Child, Comedians George Carlin and Rodney Dangerfield (I get no respect!),movie director Alfred Hitchcock, and actor Tom Hanks.
USA Today had an article ["CEOsvalue lessons from teen jobs"] which offers some career advice from successful business people.Of course, what worked for them may not work for you, all based on different personality types. Hereis an excerpt of the advice I thought the most useful:
- "If you are committed, you will be successful." (unfortunately, the reverse is also true: if you are successful,you will be asked to move to a different job)
- "Tackle offbeat jobs. Challenge conventional wisdom within reason. Come into contact with people from all walks of life."
- "Show an interest, demonstrate you want to be on the job."
- "Never limit yourself. Look beyond to what needs to be done, or should be done. Then do it. Stretch. Go beyond what others expect."
- "Find a job that forces you to work effectively with people. No matter what you end up doing, dealing with others will be critical."
- "Bring your best to the table every day. Learn professional responsibility and how to handle difficult situations."
- "Listen carefully to what customers want."
Before IBM, I ran my own business. If you are thinking, "Maybe I will start my own business instead?" you might want to see this advice from Venture Capitalist [Guy Kawasaki on Innovation].While running your own business has advantages, like avoiding issues "working for the man", it has somedisadvantages as well. It is certainly not as easy as some people make it seem to be.
Of course, things are a lot different nowadays than they were when these CEOs were teenagers. And the pace ofchange does not seem to be slowing down any either. Here is a presentation on [SlideShare.net] that helps bring to focus the realities of globalization:
But in the future, you will not just be competing with other smart people around the globe.Which brings me to "the Singularity". The Institute of Electrical and Electronics Engineers, Inc. (IEEE) has [The Singularity - A Special Report], a whole issue of Spectrum Online devoted to this.Nick Carr offers his thoughts on this on his Rough Type blog in his post[What we talk about when we talk about singularity].
Whether you are a student looking for a job, or a seasoned professional willing to share some career advice,enter a comment below.
technorati tags: career advice, Carl Jung, Myers-Briggs, ENTP, USA Today, Thomas Edison, Guy Kawasaki, venture capitalist, Shift Happens, IEEE, Spectrum, Nick Carr, Rough Type, engineers
Well it's Tuesday, and ["election day"
] here in the USA, and again IBM has more announcements.
IBM announced [IBM Tivoli Key Lifecycle Manager v1.0] (TKLM) to manage encryption keys. This provides a graphical interface to manage encryption keys, including retention criteria when sharing keys with other companies.
TKLM is supported on AIX, Solaris, Windows, Red Hat and SUSE Linux. IBM plans to offer TKLM forz/OS in 2009. TKLM can be used with Firefox or Internet Explorer web browser. This will include the Encryption Key Manager (EKM) that IBM offered initially to support encryption keys for the TS1120, TS1130, and LTO-4 drives.
While this is needed today for tape, IBM positions this software to also manage the encryption keys for "Full Drive Encryption" (FDE) disk drive modules (DDM) in IBM disk systems in 2009.
Tomorrow, I'll start my long-overdue vacation!
technorati tags: IBM, Tivoli, TLKM, AIX, Solaris, Windows, Linux, Firefox, IE, TS1120, TS1130, LTO-4, EKM, FDE, DDM
Continuing this week's theme on Cloud Computing, Dynamic Infrastructure and Data Center Networking, IBM unveiled details of an advanced computing system that will be able to compete with humans on Jeopardy!
, America’s favorite quiz television show. Additionally, officials from Jeopardy!
announced plans to produce a human vs. machine competition on the renowned show.
For nearly two years, IBM scientists have been working on a highly advanced Question Answering (QA) system, codenamed "Watson" after IBM's first president, [Thomas J. Watson]. The scientists believe that the computing system will be able to understand complex questions and answer with enough precision and speed to compete on Jeopardy!Produced by Sony Pictures Television, the trivia questions on Jeopardy! cover a broad range of topics, such as history, literature, politics, film, pop culture, and science. It poses a grand challenge for a computing system due to the variety of subject matter, the speed at which contestants must provide accurate responses, and because the clues given to contestants involve analyzing subtle meaning, irony, riddles, and other complexities at which humans excel and computers traditionally do not. Watson will incorporate massively parallel analytical capabilities and, just like human competitors, Watson will not be connected to the Internet or have any other outside assistance.
If this all sounds familiar, you might remember some of the events that have led up to this:
- In 1984, the movie ["The Terminator"] introduced the concept of [Skynet], a fictional computer system developed by the militarythat becomes self-aware from its advanced artificial intelligence.
- In 1997, an IBM computer called Deep Blue defeated World Chess Champion [Garry Kasparov] in a famous battle of human versus machine. To compete at chess, IBM built an extremely fast computer that could calculate 200 million chess moves per second based on a fixed problem. IBM’s Watson system, on the other hand, is seeking to solve an open-ended problem that requires an entirely new approach – mainly through dynamic, intelligent software – to even come close to competing with the human mind. Despite their massive computational capabilities, today’s computers cannot consistently analyze and comprehend sentences, much less understand cryptic clues and find answers in the same way the human brain can.
- In 2005, Ray Kurzweil wrote [The Singularity is Near] referring to the wonders that artificial intelligence will bring to humanity.
The research underlying Watson is expected to elevate computer intelligence and human-to-computer communication to unprecedented levels. IBM intends to apply the unique technological capabilities being developed for Watson to help clients across a wide variety of industries answer business questions quickly and accurately.
For more details, read the IBM[Press Release].
technorati tags: IBM, Cloud Computing, Dynamic Infrastructure, Data Center Networking, Jeopardy, Watson, Sony, quiz show, Terminator, Skynet, Deep Blue, Garry Kasparov, Ray Kurzweil, Singularity, HCI, AI, artificial intelligence
For those of us in the northern hemisphere, yesterday was this year's Winter Solstice
, representingthe shortest amount of daylight between sunrise and sunset. So today, I thought I would blog on my thoughtsof managing scarcity.
Earlier in my career, I had the pleasure to serve as "administrative assistant" to Nora Denzel for the week at a storage conference. My job was to make her look good at the conference, which if you know Nora, doesn't take much. Later, she left IBM to work at HP, and I gotto hear her speak at a conference, and the one thing that I remember most was her statement that thewhole point of "management" was to manage scarcity, as in not enough money in the budget,not enough people to implement change, or not enough resources to accomplish a task.(Nora, I have no idea where you are today, so if you are reading this, send me a note).
Of course, the flip-side to this is that resources that are in abundance are generallytaken for granted. Priorities are focused on what is most scarce. Let's examine some of theresources involved in an IT storage environment:
- Capacity - while everyone complains that they are "running out of space", the truth is that most external disk attached to Linux, UNIX, or Windows systems contain only 20-40% data. Many years ago, I visitedan insurance company to talk about a new product called IBM Tivoli Storage Manager. This company had 7TB of disk on their mainframe,and another 7TB of disk scattered on various UNIX and Windows machines. In the room were TWO storage admins for
the mainframe, and 45 storage admins for the distributed systems. My first question was "why so many people forthe mainframe, certainly one of you could manage all of it yourself, perhaps on Wednesday afternoons?" Their response was that they acted as eachother's backup, in case one goes on vacation for two weeks. My follow-up question to the rest of the audience was:"When was the last time you took two weeks vacation?" Mainframes fill their disk and tape storage comfortablyat over 80-90% full of data, primarily because they have a more mature, robust set of management software, likeDFSMS.
- Labor - by this I mean skilled labor able to manage storage for a corporation. Some companies I have visitedkeep their new-hires off production systems for the first two years, working only on test or development systemsonly until then. Of course, labor is more expensive in some countries than others. Last year, I was doing a whiteboard session on-site for a client in China, and the last dry-erase pen ran out of ink. I asked for another pen, and they instead sent someone to go re-fill it. I asked wouldn't it be cheaper just to buy another pen, and they said "No, labor is cheap, but ink is expensive." Despite this, China does complain that there is a shortage of askilled IT labor force, so if you are looking for a job, start learning Mandarin.
- Power and Cooling - Most data centers are located on raised floors, with large trunks of electrical power and hugeair conditioning systems to deal with all the heat generated from each machine. I have visited the data centers ofclients that are forced now to make decisions on storage based on power and cooling consumption, because the coststo upgrade their aging buildings are too high. Leading the charge is IBM, with technology advancements in chips, cards, and complete systems that use less power, and generate less heat. While energy is still fairly cheap in the grand scheme of things, fears ofGlobal Warmingand declining oil supplies, the costs ofpower and cooling have gotten some news lately. In 1956, Hubbert predicted US would reach peak oil supplies by1965-1970 (it happened in 1971), and this year Simmonsestimated that world-wide oil production began its decline already in 2005. Smart companies like Google have movedtheir server farms to places like Oregon in the Pacific Northwest for cheaper hydroelectric power.
- Bandwidth - Last year IBM introduced 4Gbps Fibre Channel and FICON SAN networking gear, along with the servers and storage needed to complete the solution. 4Gbps equates to about 400 MB/sec in data throughput. By comparison, iSCSI is typically run on 1Gbps Ethernet, but has so much overheads that you only get abour 80 MB/sec. Next year, we may see both 8 Gbps SAN, and 10 GbE iSCSI, to provide 800 MB/sec throughputs. My experience is that the SAN is not the bottleneck, instead people run out of bandwidth at the server or storage end first. They may not have a million dollars to buy the fastest IBM System p5 servers, or may not have enough host adapters at the storage system end.
- Floorspace - I end with floorspace because it reminds me that many "shortages" are temporary or artificially created. Floorspace is only in short supply because you don't want to knock down a wall, or build a new building, to handle your additional storage requirements.In 1997, Tihamer Toth-Fejel wrote an article for the National Space Society newsletter that estimated that ...Everybody on Earth could live comfortably in the USA on only 15% of our land area, with a population density between that of Chicago and San Francisco. Using agricultural yields attained widely now, the rest of the U.S. would be sufficient to grow enough food for everyone. The rest of the planet, 93.7% of it, would be completely empty.Of course, back in 1997 the world population was only 5.9 billion, and this year it is over 6.5 billion.
This last point brings me back to the concept of food, and I am not talking about doughnuts in the conference room, or pizza while making year-end storage upgrades. I'm talking aboutthe food you work so hard to provide for yourself and your family. The folks at Oxfam came up with a simpleanalogy. If 20 people sit down at your table, representing the world’s population:
- 3 would be served a gourmet, multi-course meal, while sitting at decorated table and a cushioned chair.
- 5 would eat rice and beans with a fork and sit on a simple cushion
- 12 would wait in line to receive a small portion of rice that they would eat with their hands while sitting on the floor.
So for those of you planning a special meal next Monday, be thankful you are one of the lucky three, and hopefulthat IBM will continue to lead the IT industry to help out the other seventeen.
Happy Winter Solstice!
technorati tags: IBM, Northern, Hemisphere, Winter, Solstice, Nora+Denzel, Oxfam, scarcity, Linux, UNIX, Windows, TSM, Tivoli+Storage+Manager, storage, admins, global+warming, climate+change, peak+oil, National+Space+Society, special, meal
I've only had this blog since Sep. 1, and already it is listed in the Data Storage Bloggers wiki list.
In last week's System Storage Portfolio Top Gun class in Dallas, some of the students were not familiarwith Really Simple Syndication (RSS). For the uninitiated, this can be intimidating.I thought a quick overview of what I've done might help:
- Chose a "feed reader". I chose Bloglines but there are many others.
- Use Technorati to search other blogs for keywords or phrases I am looking for.
- When I find a blog that I like to continue tracking, I "add" it to my subscription list on bloglines. Just hit "add" and copy the URL of the blog you want to track. Bloglines will figure out the RSS keywords required.I track eight blogs at the momemnt, but some people with lots of time on their hands track 20 or more. It is easy to unsubscribe, so don't be afraid to try some out for a few days.
- Since I was actually going to run a blog of my own, I read a few books on the topic. One I recommend is "Naked Conversations" by Robert Scoble and Shel Israel, both experienced bloggers.
- Finally, I am not big on spell checking, but most places have the option to preview your post or comment before it actually gets posted, which is not a bad idea if you use any HTML tags.
For a quick taste of blogging, consider using Data Storage Blogger Feed Reader. This has a lot of blogs on the topic of storage, already added and categorized for your convenience, ready for your perusal.
I am sure there are many other ways to enjoy the Blogosphere, but this works for me.[Read More]
In Storage Technology News, Marc Staimer makes hisSeven network storage predictions for 2007
. Let's take a closer look at each one.
- Federal Rules for Civil Procedures (FRCP) will increase adoption of unstructured data classification, email archive systems and CAS.
CAS continues to flounder, but the rest I can agree with. Regulations are being adopted world wide. Japan has its own Sarbanes-Oxley (SOX) style legislation go into effect in 2008.IBM TotalStorage Productivity Center for Data is a great tool to help classify unstructured file systems. IBM CommonStore for email supports both Microsoft Exchange and Lotus Domino, and can be connected to IBM System Storage DR550 for compliance storage.
- Unified storage systems (combined file and block storage target systems) will become increasingly attractive in 2007, because of their ease of use and simplicity.
I agree with this one also. Our sales of IBM N series in 2006 was great, and looking to continue its strong growth in 2007. The IBM N series brings together FCP, iSCSI and NAS protocols into one disk system. With the SnapLock(tm) feature, N series can store both re-writable data, as well as non-erasable, non-rewriteable data, on the same box. Combine the N series gateway on the front-end with SAN Volume Controller on the back-end, and you have an even more powerful combination.
- Distributed ROBO backup to disk will emerge as the fastest growing data protection solution in 2007.
IDC had a similar prediction for 2006. ROBO refers to "Remote Office/Branch Office", and so ROBO backup deals with how to back up data that is out in the various remote locations. Do you back it up locally? or send it to a central location?Fortunately, IBM Tivoli Storage Manager (TSM) supports both ways, and IBM has introduced small disk and tape drives and auto-loaders that can be used in smaller environments like this. I don't know whether "backup to disk" will be the fastest growing, but I certainly agree that a variety of ROBO-related issues will be of interest this year.
- 2007 will be remembered as the year iSCSI SAN took off because of the much reduced pricing for 10 Gbit iSCSI and the continued deployment of 10 Gbit iSCSI targets.
While I agree that iSCSI is important, I can't say 2007 will be remembered for anything.We have terrible memory in these things. Ask someone what year did Personal Computers (PC) take off, and they will tell you about Apple's famous 1984 commercial. Ask someone when the Internet took off, cell phones took off, etc, and I suspect most will provide widely different answers, but most likely based on their own experience.
For the longest time, I resisted getting a cell phone. I had a roll of quarters in my car, and when I needed to make a call, I stopped at the nearby pay-phone, and made the call. In 1998, pay phones disappeared. You can't find them anymore. That was the year of the cell phones took off, at least for me.
Back to iSCSI, now that you can intermix iSCSI and SAN on the same infrastructure, either through intelligent multi-protocol switches available from your local IBM rep, or through an N series gateway, you can bring iSCSI technology in slowly and gradually. Low-cost copper wiring for 10 Gbps Ethernet makes all this very practical.
Another up-and-coming technology is AoE, or ATA-over-Ethernet. Same idea as iSCSI, but taken down to the ATA level.
- CDP will emerge as an important feature on comprehensive data protection products instead of a separate managed product.
Here, CDP stands for Continuous Data Protection. While normal backups work like a point-and-shoot camera, taking a picture of the data once every midnight for example. CDP can record all the little changes like a video camera, with the option to rewind or fast-forward to a specific point in the day. IBM Tivoli CDP for Files, for example, is an excellent complement to IBM Tivoli Storage Manager.
The technology is not really new, as it has been implemented as "logs" or "journals" on databases like DB2 and Oracle, as well as business applications like SAP R/3.
The prediction here, however, relates to packaging. Will vendors "package" CDP into existing backup products, possibly as a separately priced feature, or will they leave it as a separate product that perhaps, like in IBM's case, already is well integrated.
- The VTL market growth will continue at a much reduced rate as backup products provide equivalent features directly to disk. Deduplication will extend the VTL market temporarily in 2007.
VTL here refers to Virtual Tape Library, such as IBM TS7700 or TS7510 Virtualization Engine. IBM introduced the first one in 1997, the IBM 3494 Virtual Tape Server, and we have remained number one in marketshare for virtual tape ever since. I find it amusing that people are now just looking at VTL technology to help with their Disk-to-Disk-to-Tape (D2D2T) efforts, when IBM Tivoli Storage Manager has already had the capability to backup to disk, then move to tape, since 1993.
As for deduplication, if you need the end-target box to deduplicate your backups, then perhaps you should investigatewhy you are doing this in the first place? People take full-volume backups, and keep to many copies of it, when a more sophisticated backup software like Tivoli Storage Manager can implement backup policies to avoid this with a progressive backup scheme. Or maybe you need to investigate why you store multiple copies of the same data on disk, perhaps NAS or a clustered file system like IBM General Parallel File System (GPFS) could provide you a single copy accessible to many servers instead.
The reason you don't see deduplication on the mainframe, is that DFSMS for z/OS already allows multiple servers to share a single instance of data, and has been doing so since the early 1980s. I often joke with clients at the Tucson Executive Briefing Center that you can run a business with a million data sets on the mainframe, but that there wereprobably a million files on just the laptops in the room, but few would attempt to run their business that way.
- Optical storage that looks, feels and acts like NAS and puts archive data online, will make dramatic inroads in 2007.
Marc says he's going out on a limb here, and that's good to make at least one risky prediction. IBM used to have anoptical library emulate disk, called the IBM 3995. Lack of interest and advancement in technology encouraged IBM to withdraw it. A small backlash ensued, so IBM now offers the IBM 3996 for the System p and System i clients that really, really want optical.
As for optical making data available "online", it takes about 20 seconds to load an optical cartridge, so I would consider this more "nearline" than online. Tape is still in the 40-60 second range to load and position to data, so optical is still at an advantage.
Optical eliminates the "hassles of tape"? Tape data is good for 20 years, and optical for 100 years, but nobody keeps drives around that long anyways. In general, our clients change drives every 6-8 years, and migrate the data from old to new. This is only a hassle if you didn't plan for this inevitable movement. IBM Tivoli Storage Manager, IBM System Storage Archive Manager, and the IBM System Storage DR550 all make this migration very simple and easy, and can do it with either optical or tape.
The Blue-ray vs. DVD debate will continue through 2007 in the consumer world. I don't see this being a major player in more conservative data centers where a big investment in the wrong choice could be costly, even if the price-per-TB is temporarily in-line with current tape technologies. IBM and others are investing a lot of Research and Development funding to continue the downward price curve for tape, and I'm not sure that optical can keep up that pace.
Well, that's my take. It is a sunny day here in China, and have more meetings to attend.
technorati tags: IBM, FRCP, SOX, TotalStorage, Productivity Center, Microsoft, Exchange, Lotus, Domino, DR550, SnapLock, unified storage, NAS, iSCSI, FCP, ROBO, Tivoli, Storage Manager, TSM, Ethernet, AoE, CDP, DB2, Oracle, SAP, VTL, TS7700, TS7510, GPFS, DFSMS, Optical, 3995, 3996, Blue-Ray, D2D2T,DVD
Wrapping up this week's theme on ways to make the planet smarter, and less confusing, I present IBM's third annual [five in five
]. These are five IBM innovations to watch over the next five years, all of which have implications on information storage. Here is a quick [3-minute video
] that provides the highlights:
technorati tags: IBM, five-in-five, innovations, solar, health, talking Web, shopping assistants, forgetting
People are confused over various orders of magnitude. News of the economic meltdownoften blurs the distinction between millions (10^6
), billions (10^9
), and trillions (10^12
).To show how different these three numbers are, consider the following:
- A million seconds ago - you might have received your last paycheck (12 days)
- A billion seconds ago - you were born or just hired on your current job (31 years)
- A trillion seconds ago - cavemen were walking around in Asia (31,000 years)
|That these numbers confuse the average person is no surprise, but that it confuses marketing people in the storage industry is even more hilarious. I am often correcting people who misunderstandMB (million bytes), GB (billion bytes) and TB (trillion bytes) of information.Take this graph as an example from a recent presentation.|
At first, it looks reasonable, back in 2004, black-and-white 2D X-Ray images were only 1MBin size when digitized, but by 2010 there will be fancy 4D images that now take 1TB, representinga 1000x increase. What?When I pointed out this discrepancy, the person who put this chart together didn't know what to fix.Were 4D images only 1GB in size, or was it really a 1000000x increase.
If a 2D image was 1000 by 1000 pixels, each pixel was a byte of information, then a 3D imagemight either be 1000 by 1000 by 1000 [voxels], or 1000 by 1000 at 1000 frames per second (fps). Thefirst being 3D volumetric space, and the latter called 2D+time in the medical field, the rest of us just say "video".4D images are 3D+time, volumetric scans over time, so conceivably these could be quite large in size.
The key point is that advances in medical equipment result in capturing more data, which canhelp provide better healthcare. This would be the place I normally plug an IBM product, like the Grid Medical Archive Solution [GMAS], a blended disk and tape storage solution designed specifically for this purpose.
So, as government agencies look to spend billions of dollars to provide millions of peoplewith proper healthcare, choosing to spend some of this money on a smarter infrastructure can result in creating thousands of jobs and save everyone a lot of money, but more importantly, save lives.
For more on this, check out Adam Christensen's blog post on[Smarter Planet], which points to a podcast byDr. Russ Robertson, chairman of the Counsel of Medical Education at Northwestern University’s Feinberg School of Medicine, and Dan Pelino, general manager of IBM's Healthcare and Life Sciences Industry.
technorati tags: IBM, smarter healthcare, 2D+time, 3D+time, 4D, medical images, Adam Christensen, Russ Robertson, Dan Pelino
I have arrived safely in Las Vegas for the IBM System Storage and Storage Networking Symposium. This eventis held once every year. The gold sponsors were: Brocade, Cisco, Finisar, Servergraph, and VMware. Our silversponsor was Qlogic.
Barry Rudolph was the keynote speaker with "Storage for the Green Data Center", similar to his presentationfor Storage Networking World in April, but with new and improved slides.
I myself had a busy day. Here's a quick recap:
- IBM System Storage - Strategy and Overview
I presented IBM's System Storage strategy and an overview of our product line. For those who missed it,our strategy is focused on helping customers in four key areas:
- Optimize IT - to simplify and automate your IT operations and optimize performance and functionality, through server/storage synergies, storage virtualization, and intergrated storage infrastructure management.
- Leverage Information - to enable a single view of trusted business information through data sharing, and to get the most value from information through Information Lifecycle Management (ILM).
- Mitigate Risk - to comply with security and regulatory requirements, and keep your business running with a complete set of business continuity solutions. IBM offers a range of non-erasable, non-rewriteable storage, encryption on disk and tape, and support for IT Infrastructure Library (ITIL) service management disciplines.
- Enable Business Flexibility - to provide scalable solutions and protect your IT investment through the use of open industry standards like Storage Networking Industry Association (SNIA) Storage Management Initiative Specification (SMI-S). IBM offers scalability in three dimensions: Scale-up, Scale-out, and Scale-within.
IBM has a broad storage portfolio, in seven offering categories:
- Disk Systems, including our SAN Volume Controller, DS family, and N series.
- Tape Systems, including tape drives, libraries and virtualization.
- Storage Networking, a complete set of switches, directors and routes
- Infrastructure Management, featuring the IBM TotalStorage Productivity Center software
- Business Continuity, advanced copy services and the software to manage them
- Lifecycle and Retention, our non-erasable, non-rewriteable storage including DR550, N series with SnapLock, and WORM tape support, Grid Archive Manager and our Grid Medical Archive Solution (GMAS)
- Storage Services, everything from consulting, design and deployment to outsourcing and hosting.
I could talk all day on this, but given that the room was packed, every seat taken and the rest of the audience standing along the walls, I had to keep it down to one hour.
- SAN Volume Controller Overview
I presented an overview of the IBM System Storage SAN Volume Controller (SVC), IBM's flagship disk virtualizationproduct. Rather than giving a long laundry list of features and benefits,I focused on the five that matter most:
- Reduces the cost and complexity of managing storage, especially for mixed storage environments
- Simplifies Business Continuity through non-disruptive data migration and advanced copy services
- Improves storage utilization, getting more value from the storage hardware you already have
- Enhances personnel productivity, empowering storage administrators to get their job done
- Delivers high availability and performance
- SAN Volume Controller - Customer Success Stories
A good part of this conference are presented by non-IBMers, which include Business Partners and clientssharing their experiences. In this session, we had two speakers share their experiences with SVC.
- David Snyder keeps over 80 web sites online and available. His digital media technologiesteam uses SVC to make their storage administration easier, and ensure high availability for web site content creation and publishing.
- Mark Prybylski manages storage at his company, a financial bank. His storage management team uses SVC Global Mirror which provides asynchronous disk mirroring between different types of disk, as part oftheir Business Continuity/Disaster Recovery plan.
The last session I attended was "Storage .. to Optimize your ECM depoloyments" by Jerry Bower, now working for IBM as part of our recent acquisition of the Filenet company. ECM stands for Enterprise Content Management, and IBM is the market leader in this space. Jerry gave a great overview of IBM Content Manager software suite, our newly acquired Filenet portfolio, and the storage supported.
After the sessions was a reception at the Solution Center with dozens of exhibitor booths. For example,Optica Technologies had their PRIZM productswhich are able to connect FICON servers to ESCON storage devices.
technorati tags: IBM, storage, networking, symposium, Brocade, Cisco, Finisar, Servergraph, VMware, Qlogic, Barry Rudolph, green, datacenter, strategy, ILM, ITIL, SNIA, SMI-S, offering, disk, tape, software, SAN Volume Controller, SVC, David Snyder, Mark Prybylski, Jerry Bower, Filenet, ECM, Optica, FICON, ESCON
In North America, today marks the start of the "Give 1 Get 1" program.
|Children using the XO laptop|
I first learned from this when I was reading about Timothy Ferriss' [LitLiberation project] on his [Four Hour Work Week] blog, and was surfing around for related ideas, and chanced upon this. I registered for a reminder, and it came today(the reminder, not the laptop itself).
Here's how the program works. You give $399 US dollars to the "One Laptop per Child" (OLPC)[laptop.org] organization for two laptops: One goes to a deserving child ina developing country, the second goes to you, for your own child, or to donate to a localcharity that helps children. This counts as a $199 purchase plus a $200 tax-deductible donation.For Americans, this is a [US 501(c)(3)] donation, and for Canadians and Mexicans, take advantage of the low-value of the US dollar!
If your employer matches donations, like IBM does, get them to match the $200donation for a third laptop, which goes to another child in a developing country. As for shipping, you pay only for the shipping of the one to you, each receiving country covers their own shipping. In my case, the shipping was another $24 US dollars for Arizona.No guarantees that it will arrive in time for the holidays this December, but it might.
To sweeten the deal, T-mobile throws in a year's worth of "Wi-Fi Hot Spot"that you can use for yourself, either with the XO laptop itself, or your regular laptop, iPhone, or otherWi-Fi enabled handheld device.
National Public Radio did a story last week on this:[The $100 Laptop Heads for Uganda]where they interview actor [Masi Oka], best known from the TV show ["Heroes"], who has agreed to be their spokesman.At the risk of sounding like their other spokesman, I thought I would cover the technology itself, inside the XO,and how this laptop represents IBM's concept of "Innovation that matters"!
The project was started by [Nicholas Negroponte] from [MIT University] as the "$100 laptop project". Once the final designwas worked out, it turns out it costs $188 US dollars to make, so they rounded it up to $200. This is stillan impressive price, and requires that hundreds of thousands of them be manufactured to justify ramping upthe assembly line.
Two of IBM's technology partners are behind this project. First is Advanced Micro Devices (AMD) that providesthe 433Mhz x86 processor, which is 75 percent slower than Thinkpad T60. Second is Red Hat,as this runs lean Fedora 6 version of Linux. Obviously, you couldn't have Microsoft Windows or Apple OS X, as both require significantly more resources.
The laptop is "child size", and would be considered in the [subnotebook] category. At 10" x 9" x 1.25", it is about the size of class textbook,can be carried easily in a child's backpack, or carried by itself with the integrated handle. When closed, it is sealedenough to be protected when carried in rain or dust storms. It weighs about 3.5 pounds, less than the 5.2 pounds of myThinkpad T60.
The XO is "green", not just in color, but also in energy consumption.This laptop can be powered by AC, or human power hand-crank, with workin place to get options for car-battery or solar power charging. Compared to the 20W normally consumed bytraditional laptops, the XO consumes 90 percent less, running at 2W or less. To accomplish this, there is no spinning disk inside. Instead, a 1GB FLASH drive holds 700MB of Linux, and gives you 300MB to hold your files. There isa slot for an MMC/SD flash card, and three USB 2.0 ports to connect to USB keys, printers or other remote I/O peripherals.
The XO flips around into three positions:
Standard laptop position has screen and keyboard. The water-tight keyboard comes in ten languages:International/English, Thai, Arabic, Spanish, Portuguese, West African, Urdu, Mongolian, Cyrillic, and Amharic.(I learned some Amharic, having lived five years with Ethiopians.)There does not appear be a VGA port, so don't be thinking this could be used as an alternative to project Powerpoint presentations onto a big screen.
Built-in 640x480 webcam, microphone and speakers allow the XO to be used as a communication device. Voice-over-IP (VOIP) client software, similar to Skype or [IBM Lotus Sametime], is pre-installed for this purpose.
The basic built-in communication are 802.1g (54Mbs) that you can use to surf the web usingthe Wi-Fi at your local Starbucks; and 802.1s which forms a "mesh network" with other XO laptops, and can surf theweb finding the one laptop nearby that is connected to the internet to share bandwidth. This eliminates the need to build a separate Wi-Fi hub at the school. There are USB-to-Ethernet and USB-to-Cellular converters, so that might be an alternative option.
Flipped vertically, the device can be read like a book.The screen can be changed between full-color and black-white, 200 dpi, with decent 1200x900 pixel resolution. The full-color is back-lit, and can be read in low-lighting. The black-white is not back-lit, consumes much less power, andcan be read in bright sunlight. In that regards, it is comparable to other [e-book devices], like a Cybook or Sony Reader.
Software includes a web-browser, document reader, word processor and RSS feed reader to read blogs.The OLPC identifies all of the software, libraries and interfaces they use, so that anyone that wants to developchildren software for this platform can do so.
- Game mode
With the keyboard flipped back, the 6" x 4.5" screen has directional controls and X/Y/A/B buttons to run games. This would make it comparable to a Nintendo DS or Playstation Portable (PSP). Again, the choice between back-lit color,or sunlight black-white screen modes apply. Some games are pre-installed.
So for $399, you could buy a Wi-Fi enabled[16GB iPod Touch
] for yourself, which does much the same thing, or you can make a difference in the world.I made my donation this morning, and suggest you--my dear readers in the US, Canada and Mexico--consider doing the same.Go to [www.laptopgiving.org
] for details.
It's Thursday here at the [Data Center Conference
] here in Las Vegas. Trying to keep up with all the sessions and activities has been quite challenging. As is often the case, there are more sessions that I want to attend than I physically am able to, so have to pick and choose.
- Making the Green Data Center a Reality
The sixth and final keynote was an expert panel session, with Mark Bramfitt from Pacific Gas and Electric [PG&E], and Mark Thiele from VMware.
Mark explained PG&E's incentive program to help data centers be more energyefficient. They have spent $7 million US dollars so far on this, and he has requested another$50 million US dollars over the next three years. One idea was to put "shells" aroundeach pod of 28 or so cabinets to funnel the hot air up to the ceiling, rather than havingthe hot air warm up the rest of the cold air supply.
The fundamental disconnect for a "green" data center is that the Facilities team pay for the electricity, but it is the IT department that makes decisions that impact its use. The PG&E rebates reward IT departments for making better decisions. The best metric available is"Power Usage Effectiveness" or [PUE], which is calculated by dividing total energy consumed in the data center, divided by energy consumed by the IT equipment itself.Typical PUE runs around 3.0 which means for every Watt used for servers, storage or network switches, another 2 Watts are used for power, cooling, and facilities. Companies are tryingto reduce their PUE down to 1.6 or so. The lower the better, and 1.0 is the ideal.The problem is that changing the data center infrastructure is as difficult as replacingthe phone system or your primary ERP application.
While California has [Title 24], stating energy efficiency standards for both residential and commercial buildings, it does notapply to data centers. PG&E is working to add data center standards into this legislation.
The two speakers also covered Data Center [bogeymans], unsubstantiated myths that prevent IT departments fromdoing the right thing. Here are a few examples:
- Power cycles - some people believe that x86 servers can typically only handle up to 3000 shutdowns, and so equipment is often left running 24 hours a day to minimize these. Most equipment is kept less than 5 years (1826 days), so turning off non-essential equipment at night, and powering it back on the next morning, is well below this 3000 limit and can greatly reduce kWh.
- Dust - many are so concerned about dust that they run extra air-filters which impactsthe efficiency of cooling systems air flow. New IT equipment tolerates dust much betterthan older equipment.
- Humidity - Mark had a great story on this one. He said their "de-humidifier" broke,and they never got around to fixing it, and they went years without it, realizing they didn't need to de-humidify.
The session wrapped up with some "low hanging fruit", items that can provide immediate benefit with little effort:
- Cold-aisle containment--Why are so few data centers doing this?
- Colocation providers need to meter individual clients' energy usage -- IBM offers the instrumentation and software to make this possible
- Air flow management--Simply organizing cables under the floor tiles could help this.
- Virtualization and Consolidation.
- High-efficiency power supplies
- Managing IT from a Business Service Perspective
The "other" future of the data center is to manage it as a set of integrated IT services,rather than a collection of servers, storage and switches.IT Infrastructure Library (ITIL) is widely-accepted as a set of best practices to accomplish this "service management" approach. The presenter from ASG Software Solutions presented their Configuration Management Data Base (CMDB) and application dependency dashboard. Theyhave some customers with as many as 200,000 configuration items (CIs) in their CMDB.
The solution looked similar to the IBM Tivoli software stack presented earlier this yearat the [Pulse conference].Both ASG and IBM "eat their own dog food", or perhaps more accurately "drink their own champagne", using these software products to run their own internal IT operations.
The next [IBM Pulse 2009 conference] will beheld here at the MGM Grand Hotel and Casino, Las Vegas, February 8-12, 2009.
For many, the future of a "green" data center managed as a set of integrated service are years away, but the technologies and products are available today, and there is no reasonto postpone these projects any longer than necessary. For more about IBM's approach togreen data center, see [Energy EfficiencySolutions]. You can also take IBM's[IT Service Management self-assessment] to help determine whichIBM tools you need for your situation.
technorati tags: LSC27, Green IT, data+center, Mark Bramfitt, PG&E, Mark Thiele, VMware, PUE, ERP, ITIL, CMDB, IBM, Pulse08
Wrapping up this week's theme on why the System z10 EC mainframe can replace so many older, smaller,underutilized x86 boxes.This was all started to help fellow bloggers Jon Toigo of DrunkenData
and Jeff Savit from Sun Microsystems
understand our IBM press release that we put out last February on this machine with my post[Yes, Jon, there is a mainframe that can help replace 1500 x86 servers
] and my follow uppost [Virtualization, Carpools and Marathons"
].The computations were based on running 1500 unique workloads as Linux guests under z/VM, and notrunning them as z/OS applications.
My colleagues in IBM Poughkeepsierecommended these books to provide more insight and in-depth understanding. Looks like some interesting summer reading. I put in quotes thesections I excerpted from the synopsis I found for each.
|[In Search of Clusters] by Gregory F. Pfister|
"From Microsoft to IBM, Compaq to Sun to DEC, virtually every large computer company now uses clustering as a key strategy for high-availability, high-performance computing. This book tells you why-and how. It cuts through the marketing hype and techno-religious wars surrounding parallel processing, delivering the practical information you need to purchase, market, plan or design servers and other high-performance computing systems.
- Microsoft Cluster Services ("Wolfpack")
- IBM Parallel Sysplex and SP systems
- DEC OpenVMS Cluster and Memory Channel
- Tandem ServerNet and Himalaya
- Intel Virtual Interface Architecture
- Symmetric Multiprocessors (SMPs) and NUMA systems"
Fellow IBM author Gregory Pfister worked in IBM Austin as a Senior Technical Staff Member focused on parallel processing issues, but I never met him in person. He points out that workloads fall into regions called parallel hell
, parallel nirvana
, and parallel purgatory
. Careful examination of machine designs and benchmark definitions will show that the “industry standard benchmarks" fall largely in parallel nirvana
and parallel purgatory
. Large UNIX machines tend to be designed for these benchmarks and so are particularly well suited to parallel purgatory
. Clusters of distributed systems do very well in parallel nirvana
. The mainframe resides in parallel hell
as do its primary workloads. The current confusion is where virtualization takes workloads, since there are no good benchmarks for it.
|[Guerilla Capacity Planning] by Neil J. Gunther|
"In these days of shortened fiscal horizons and contracted time-to-market schedules, traditional approaches to capacity planning are often seen by management as tending to inflate their production schedules. Rather than giving up in the face of this kind of relentless pressure to get things done faster, Guerrilla Capacity Planning facilitates rapid forecasting of capacity requirements based on the opportunistic use of whatever performance data and tools are available in such a way that management insight is expanded but their schedules are not."
Neil Gunther points out that vendor claims of near linear scaling are not to be trusted and shows a method to “derate” scaling claims. His suggested scaling values for data base servers is closer IBM's LSPR-like scaling model, than TPC-C or SPEC scaling. I had mentioned that "While a 1-way z10 EC can handle 920 MIPS, the 64-way can only handle 30,657 MIPS."in my post, but still people felt I was using "linear scaling". Linear scaling would mean that if a 1Ghz single-core AMD Opteron can do four(4) MIPS, and an one-way z10 EC can do 920 MIPS, than one might assume that 1GHz dual-core AMD could do eight(8) MIPS, and the largest 64-way z10 EC can do theoretically 64 x 920 = 58,880 MIPS. The reality is closer to 6.866 and 30,657 MIPS, respectively.
This was never an IBM-vs-Sun debate. One could easily make the same argument that a large Sun or HP system could replace a bunch of small 2-way x86 servers from Dell. Both types of servers have their place and purpose, and IBMsells both to meet the different needs of our clients. The savings are in total cost of ownership, reducing powerand cooling costs, floorspace, software licenses, administration costs, and outages.
I hope we covered enough information so that Jeff can go back about talking about Sun products, and I can go backto talk about IBM storage products.
technorati tags: IBM, z10, EC, Jon Toigo, DrunkenData, Jeff Savit, Sun, Gregory Pfister, Austin, Neil Gunther, MIPS, LSPR, SPEC, TPC-C, mainframe, scalability, UNIX, Linux, z/OS, HP, Dell
This week's theme is alternative sourcing through Cloud Computing.
|I thoughtI would start off the week interviewing an owner at a Small or Medium-sized Business [SMB] that recently adopted this approach.|
Meet Fred, one of the new co-owners of my singles activities club, TucsonFun and Adventures, known affectionately as [TFA]. TFA recentlyadopted a new "Software-as-a-Service" [SaaS] for the company's Web site.
While the experience is still fresh in his mind, I thought this would be a goodopportunity to illustrate some of the concepts of alternative sourcing through Cloud Computing byusing a local example.
Give me some background on the company. How long has it been around? How many employees?
TFA has been in business since 1997, and has six employees, including an office manager, event planners and event coordinators.
How critical is "Web presence" to the business?
It's very important in several ways.First, the TFA staff plans 25 events per month, and our hundreds of members register for these events mostly through the Web site. Second, we have it connected to our bank accounts, so that it can process credit cards to collect the funds for renewals and event registrations.Third, it serves as a way to communicate upcoming events to our members, especially trips, so they can save the date on their own calendars. And fourth, the Web site serves as a "landing page"for all of our radio spots, newspaper ads, and other marketing efforts.
TFA had a Web site before, and now you have helped launch this new Web site. What motivated this change?
Our members were complaining about our 1999-era Web site. The pages were written in HTML, ASP (Active Service Page) and SQL (Structured Query Language) connected to a Microsoft SQL Server 2005 database. It was mostly text-based, with the only animation being text scrolling horizontally across the screen. The Web hostingprovider offered reliable access, but was located in New York state on East Coast time. If a member signed up for an event after 9pm or 10pm here in Tucson, it was marked as the next date, which could change the price of the event, or indicate the deadline was missed.If there were any changes to the pages or logic needed, or new columns required in the database, it gotexpensive. The TFA employees don't know how to program in ASP or SQL, so we hadto hire outside professionals each time.
Does this new Software-as-a-Service (SaaS) Web site address these problems you were trying to solve?
Yes. The new Web site is hosted by [Memberize] which provides a hosted membership management application. The TFA staff can nowmanage its membership, plan events, and communicate them with graphics, videos,and links to maps. They don't need to know ASP or SQL programming, because a built-in[WYSIWYG] editor is simple enough for anyone with standard word-processing skills. The database allowed the optionto add customized fields for each member we have in our club.
Was it difficult to switch over?
Not at all. Memberize gave us a 60-day free trial, and we needed all that time totransfer over our membership records, customize the style of the overall templatefor all pages, and then copy over the content from our old Web site. Wehad to transfer over our e-commerce service over, and contact GoDaddy to transfer the domain. The employee training required was fairly minimal.Cost-wise, it was only a few hundred dollars one-time setup fee, and then we pay a monthly fee,based on a tiered pricing structure based on the count of our active members.
How has the reaction been from your membership?
I've gotten a lot of positive feedback. The learning curve was minimal. Ourmembers found the new Web site intuitive and interactive. For example, thecalendar of events can be shown in a single month-at-a-glance format, with greendots showing the events you are signed up for.
And from your perspective, Fred, is the new Web site easy to administer?
Yes, I can now easily generate standard reports, and create my own ad-hoc reports as needed. This wasn't possible with the old system unless I hired an ASP programmer.
Hopefully, this provides some insight on how even the smallest SMB enterprises can adopt a Dynamic Infrastructure through alternative sourcing. Cloud Computing takes many forms, including Software-as-a-Service managed offerings.
technorati tags: IBM, SMB, SME, SaaS, Cloud Computing, Alternative Sourcing, TFA, Tucson, Arizona, Dynamic Infrastructure
Continuing my blog coverage of the [Forrester IT Forum 2009 conference
],I will group a bunch of topics related to Cloud Computing into one post. Cloud Computing was a big topichere at the IT Forum, and probably was also in the other two conferences IBM participated in this week inLas Vegas:
The CIOs and IT professionals at this Forrester IT Forum seemed to be IT decision makers with a broader view. There was a lot of interest in Cloud Computing. What is Cloud Computing? Basically, it is renting IT capability on an as-needed basis from a computing service provider. The different levels of cloud computing depends on what the computing service provider actually provides. How do these compare with traditional co-location facilities or your own in-house on-premises computing? Here's my handy-dandy quick-reference guide:
|Cloud Software-as-a-Service [SaaS], Examples: SalesForce and Google Apps.||Yes||Yes||Yes||Yes||No|
|Cloud Platform-as-a-Service [PaaS], such as Google AppEngine, Microsoft Azure, or IBM's own [Computing On Demand].||Yes||Yes||Yes||No||No|
|Cloud Infrastructure-as-a-Service [IaaS], such as Amazon EC2, RackSpace.||Yes||Yes||No||No||No|
|Tradtional Co-Location facility, you park your equipment on rented floorspace, power, cooling and bandwidth.||Yes||No||No||No||No|
|Traditional On-Premises, what most people do today, build or buy your own data center, buy the hardware, write or buy the software, then install and manage it.||No||No||No||No||No|
A main tent session had a moderated Q&A panel of three Forrester Analysts titled "Saving, Making and Risking Cash with Cloud Computing." Here are some key points from this panel:
- Is Cloud Computing just another tool in the IT toolbox, or does it represent a revolution? The panel gave arguments for both. As a set of technology, protocols and standards, it is an evolutionary progression of other standards already in place, and an extension of methods used in co-location and time-share facilities. However,from a business model perspective, Cloud Computing represents a revolutionary trend, eliminating in some cases huge up-front capital expenses and/or long-term outsourcing contracts. PaaS and IaaS offerings can be rented by the hour, for example.
- An example of using Cloud Computing for a one-time batch job: The New York Times decided to build an archive of 11 million articles, but this meant having to convert them all from TIFF to PDF format. The IT person they put in charge of this rented 100 machines on [Amazon Elastic Compute Cloud (EC2)] for 24 hours and was able to convert all 4TB of data for only $240 US dollars.
- Cloud Computing can make it easier for companies to share information with clients, suppliers and business partners, eliminating the need to punch holes through firewalls to provide access.
- Since it is relatively cheap for companies to try out different cloud computing offerings with little or no capital investment, the spaghetti model applies--"throw it on the wall, and see what sticks!"
- What application areas should you consider running in the cloud? Employee self-service portals-Yes, ERP-Mixed, On-time batch jobs-Mixed, Email-Yes, Access Control-No, Web 2.0-Mixed, Testing/QA-Mixed, Back Office Transactions-No, Disaster Recovery-Mixed.
- Different IT roles will see varying benefits and risks with cloud computing. However, by 2011, every new IT project must answer the question "Why not run in the cloud?"
There were a variety of track sessions that explored different aspects of cloud computing:
- Software-as-a-Server: When and Why
This session had three Forrester analysts in a Q&A panel format. SaaS can provide much-needed relief from application support, maintenance and upgrade chores. The choice and depth of offerings is improving from SaaS providers. However, when comparing TCO between SaaS and on-premises deployments, can yield different results for different use cases. For example, a typical SaaS rate of $100 US dollars per user per month, with discounts, could be $1000 per year, or $10,000 over a 10-year period. Compare that to the total 10-year costs of an on-premises deployment, and you have a good ball-park comparison. SaaS can provide faster time-to-value, and you can easily just try-before-you-buy several alternative offerings before making a decision.
The downside to SaaS is that you need to understand their data center, where it is located, and how it is protected for backup and disaster recovery. Some SaaS providers have only a single data center, so it mightbe disruptive if it experiences a regional disaster.
- Cloud IT Services: The Next Big Thing or Just Marketing Vapor?
Economic pressures are forcing companies to explore alternatives, and Cloud IT services are providingadditional options over traditional outsourcing. Only 70-80 percent of companies are satisfied with traditionaloutsourcing, so there is opportunity for Cloud IT services to address those not satisfied. Scalable, consumption-based billing with Web-based accessibility and flexibility is an attractive proposition. Tenyears ago, you could not buy an hour on a mainframe with your credit card, now you can.
Cloud technologies are mature, and there is interest in using these services. About 10 percent of companies are piloting SaaS offerings, 16 percent piloting PaaS offerings, and 13 percent investing in deploying "private clouds" within their data center. This week Aneesh Chopra, who is Barack Obama's pick as the first CTO for the US Federal Government, [stated to congressional leaders]: “The federal government should be exploring greater use of cloud computing where appropriate.”
IBM is betting heavily on their Cloud Computing strategy, has already gone through the reorganizations needed to be positioned well, and claims to have thousands of clients already. HP has some cloud offerings focused on their enterprise customers. Dell is investing and reorganizing for cloud as well.
- Network Strategic Planning for Challenging Times
While not limited to Cloud Computing, companies are seeing WAN traffic doubling every 18 months, but withoutthe corresponding increases in budget to cover it. The Forrester analyst covered WAN optimization management services, hybrid Ethernet-MPLS offerings to help people transition from MPLS VPNs to Carrier-grade Ethernet.
Who should you hire for WAN optimization? Do you trust your own Telco that provides your bandwidth to help you figure out ways to use less of it? Alternatives include System Integrators and Service providers like IBM and EDS.Or, you could try to do it yourself, but this requires capital investment in gear and performance monitoring software.
New workloads like Voice over IP (VoIP) and digital surveillance can help cost-justify upgrading your MPLS VPNs to Carrier-grade Ethernet. The possibility of converging this with iSCSI and/or Fibre Channel (FC) over Ethernet (FCoE) and this can help reduce costs as well. Both MPLS and Ethernet will co-exist for awhile, and hybrid offerings from Telcos will help ease the transition. In the meantime, switching some workloads to Cloud Computing can provide immediate relief to in-house networks now. Converging voice, video, LAN, WAN and SAN traffic may require the IT departments to reorganize how the IT role of "network administrator" is handled.
- Navigating the Myriad New Sourcing Models
The landscape of outsourcing has changed with the introducing of new Cloud Computing offerings. However, adapting these new offerings to internal preferences may prove challenging. The Forrester analyst suggesting being ready to try to influence their companies to adopt Cloud Computing as a new sourcing option.
Traditional outsourcing just manages your existing hardware and software, often referred to as "Your mess for less!" However, outsourcing contract law is mature and many outsource providers are large, well-established providers. In contrast, some SaaS providers are small, and the few that are largemay be fairly new to the outsourcing business. Here are some things to consider:
- Where will the data physically be located? There are government regulations, such as the US Patriot Act, that can influence this decision.Many Canadian and European customers are avoiding providers where datais stored in the United States for this reason.
- What is the service delivery chain? Some cloud providers in turn useother cloud providers. For example a SaaS provider might develop the software and then rent the platform it runs on from a PaaS, which in turn mightbe using offshore or co-location facilities to actually house their equipment.Knowing the service delivery chain may prove important on contractnegotiations. Clarify "cloud" terminology and avoid mixed metaphors.
- What is their contingency plan? What is your contingency plan if the system is slow or inaccessible. What is their plan to protect against data loss during disasters? What if they go out of business? Source Code Escrow has proven impractical in many cases. SLAs should provide for performance, availability and other key metrics. However, service level penalties are not a cure-all for major disruptions, loss of revenues or reputation.
- How will they handle security, compliance and audits? Heavy regulatory requirements may favor dedicated resources to be used.
- Who has "custodianship" of the data? Will you get the data back if you discontinue the contract? If so, what format will it be in, and will it make any sense if you are not running the same application as the cloud provider?
- Will they provide transition assistance? Moving from on-premises to cloud may involve some effort, including re-training of end users.
- Are the resources shared or dedicated? For shared resource environments, is the capacity "fenced off" in any way to prevent having other clients impact your performance or availability.
I am glad to see so much interest in Cloud Computing. To learn more, here is IBM's [Cloud Computing] landing page.
technorati tags: IBM, Las Vegas, FITF09, Forrester, Forrester Research, FORR, IT Forum, Cloud Computing, Manhattan Momentum, Interop, SaaS, PaaS, IaaS, co-location, Amazon EC2, Google, private cloud, SalesForce, Aneesh Chopra, HP, Dell, MPLS, Ethernet, VoIP, Digital Video Surveillance, LAN, WAN, SAN, FCoE, iSCSI
Well it's Tuesday, which means its time to look at recent announcements.While I was on vacation last week, IBM made a lot of storage announcements October 23.Josh Krischer gives his summary on WikiBon [October 2007 Review
].Austin Modine of the The Register
went so far as to say that [IBM goes crazy with storage system updates
- IBM System Storage DS8000 series
This is "Release 3" software/microcode upgrades on our existing "Turbo" hardware.
- IBM FlashCopy SE -- Here "SE" stands for Space Efficient. Rather than allocating a full 100% of the space for the FlashCopy destination, you can set aside just a fraction, and this will hold all the changed blocks, similar to whatIBM already offers on the DS4000 series.
- Dynamic Volume Expansion -- In the past, if you needed more space for a LUN, you had to carve out a newer one elsewhere, and then copy the data over from the old to the new, leaving the old LUN around to be re-used or leftstranded. With this enhancement, you can just upgrade the LUN in place, making it bigger as needed, similar to whatIBM already offers on the DS4000 series and SAN Volume Controller. This applies to CKD volumes for the System zmainframe users out there as well.
- Storage Pool Striping -- striping volumes across RAID ranks to eliminate or reduce hot-spots, and provide betterload balancing. Many used SAN Volume Controller in front of the DS8000 to do this, but now you can do it natively inthe DS8000 itself.
- z/OS Global Mirror Multiple Reader -- for System z customers, "z/OS Global Mirror" is the new name for XRC. Thisenhancement improves the throughput of sending updates to the remote disaster recovery location.
- DS Storage Manager enhancements, the element manager software has been enhanced, and is pre-installed on the new IBM System Storage Productivity Center, which I will talk about below.
- Intermix of DS8000 machine types -- this is especially useful to allow new frames to have co-terminating warrantieswith the base units. In other words, as you expand your system, you can ensure that the entire chunk of iron runs outof warranty all at the same time, to simplify your decision making process to upgrade or contract for extended service.
See the [DS8000 Announcement Letter] for more details.
- IBM System Storage SAN Volume Controller 4.2.1
BarryW summarizes the updates in the[Announced SVC 4.2.1] release.If you have problems with the link he provides in his post, here is the [SVC 4.2.1 Announcement Letter].
- IBM System Storage Productivity Center
One of the biggest complaints about IBM TotalStorage Productivity Center is that it is software that needs to beinstalled on its own server, and that this installation process can take a day or two. Why wait? Now you can havea hardware console that has the DS8000 Storage Manager software, SVC Admin Console software, and IBM TotalStorageProductivity Center "Basic Edition" pre-installed. Here are the key features.
- Pre-installed and tested console
- DS8000 R3 GUI integration
- Cohabitation of SVC 4.2.1 GUI and CIMOM
- Automated device discovery
- Asset and capacity reporting, including tape library support
- Device configuration
- Advanced topology viewer
See the[System Storage Productivity Center - Announcement letter] for more details."Basic Edition" can be upgraded to "Standard Edition" to get full functionality.
- IBM System Storage N series
Our "Release 9" applies across the board, from N3000 to N5000 to N7000 series models, includingnew host bus adapters, and the new Data OnTAP 7.2.4 release level.
The Virtual File Manager (VFM) was announced as one of our latest [Storage Virtualization Solutions]. VFMprovides a global namespace that aggregates the file systems from Linux, UNIX, and Windows file servers, as well asN series storage, into a consolidated environment.
See the [N series Announcement Letter] for more details.
- IBM TS7520 Virtualization Engine
IBM's virtual tape library (VTL) for the distributed systems platform, has been enhanced to provide:
- Up to 12TB of disk cache, using 750GB SATA disk.
- F05 Tape Frames installed as TS7520 base units through a 32 port fibre channel switch
- Support for LTO generation 4 tape drives, both as virtual tape drives and as physical tape drives within IBM automated tape libraries attached to the TS7520. This allows you to use Encryption capabilities of LTO4.
See the [TS7520 Announcement Letter] for more details.
- IBM System Storage DS6000 series
The latest 300GB 15K RPM drives are now supported.
- IBM System Storage DS4000 series
This was a software/microcode upgrade release for the DS4000 series.
- RAID-6 support on the DS4700 Express models and the DS4200 Model 7V
- Support for greater than 2 TB volumes on selected supported operating systems
- 8K cache block size
- DS4000 Storage Manager v10.10 increases the number of FlashCopy tasks, remote mirror pairs, and storage partitions.
See the [DS4000 Announcement Letter] for more details.
- IBM System Storage DS3000 series
DS3000 series now supports SATA disk, and can be attached to AIX and Linux on System p servers. This appliesto the DS3200, DS3300 and DS3400 models.See the [DS3000 Announcement Letter] for more details.
- IBM System Storage TS2240
These are LTO4 Half-High drives, which can support encryption.See the [TS2240 Announcement Letter] for details.
Perhaps Austin is right, we might have gone crazy announcing all of this at once.
technorati tags: Josh Krischer, Austin Modine, IBM, DS8000, Turbo, FlashCopy, SE, space efficient, dynamic volume expansion, DVE, striping, z/OS Global Mirror, XRC, System Storage, Productivity Center, TotalStorage, Basic Edition, topology viewer, ONTAP, VFM, global namespace, TS7520, Virtualization Engine, virtual tape library, VTL, F05, SATA, LTO, LTO4, LTO-4, DS6000, DS4000, RAID6, RAID-6, AIX, Linux, System p, servers, TS2240, half-high, drives
The "Storage Symposium Mexico - 2008" conference was a great success this week!
Day 1 - The plan was for me to arrive for the Wednesday night reception. Eachattendee was given a copy of my latest book[Inside System Storage: Volume I] and I was planning to sign them. I thought perhaps we should have a "book signing" tablelike all of the other published authors have.
Things didn't go according to plan. Thunderstorms at the Mexico City airport forced our pilot to find an alternate airport. Nearby Acapulco airport was the logical choice, but was full from all the otherflights, so the plane ended up in a tiny town called McAllen, Texas. I did not arrive until the morning of Day 2,so ended up signing the books throughout Thursday and Friday, during breaks and meals, wherever they couldfind me!
Special thanks to fellow IBMer Ian Henderson who picked me up from the airport at such an awkward hour anddrive me all the way to Cuernavaca!
Day 2 - The event venue is the beautiful Japanese-theme[Camino Real Sumiya Hotel] in Cuernavaca, Mexico.
|All of us, IBMers, Business Partners and clients alike, all donned black tee-shirtswith a white eightbar logo for a group photo with one of those "wide lens" cameras. While we werebeing assembled onto the bleachers, I took this quick snapshot of myself and some of the guys behind me.|
I was original scheduled to be first to speak, but with my flight delays, was moved to a time slot after lunch.After a big Mexican lunch, the conference coordinators were afraid the attendees might fall asleep,a Mexican tradition called [siesta], so I wasinstructed to WAKE THEM UP! Fortunately, my topic was Information Lifecycle Management, a topicI am very passionate about, since my days working on DFSMS on the mainframe. With 30percent reduction in hardware capital expenditures, 30 percent reduction in operational costs, and typical payback periods between 15 to 24 months, the presentation got everyone's attention.
|Of course, a lot happens outside of the formal meetings. We had a Japanese theme dinner, where we woreJapanese Hachimaki [headbands]with the eightbar logo. For those not familiar with Japanese culture, hachimaki are worn today not so much for the practical purpose to catch the perspiration but rather for mental stimulation to express one's determination. Some students wear hachimaki when they study to put themselves in the right spirit and frame of mind.|
Shown here are presenters Mike Griese (Infrastructure Management with IBM TotalStorage Productivity Center),Dave Larimer (Backup and Storage Management with IBM Tivoli Storage Manager), myself, and John Hamano(Unified Storage with IBM System Storage N series).
Day 3 - Wrapping up the week, I presented two more times.
First, I covered IBM Disk Virtualization with IBM SAN Volume Controller. One interesting question was if the SAN Volume Controller could be made to looklike a Virtual Tape Library. I explained that this was never part of the original design, but that if you wantto combine SVC with a VTL into a combined disk-and-tape blended solution, consider using theIBM product called Scale-Out File Services[SoFS] which I covered in my post[Moredetails about IBM clustered scalable NAS].
|During one of the breaks, I took a picture of the behind-the-scenes staff that put this together. They had created these huge blocks representing puzzle pieces, emphasizing how IBM is one of the few ITvendors that can bring all the pieces together for a complete solution.|
Shown hereare Mike Griese (presenter), Cyntia Martinez, Claudia Aviles, Cesar Campos (IBM Business Unit Executive forSystem Storage in Mexico), and Claudia Lopez. Each day the staff wore matching shirts so that it was easyto find them.
Later, I covered Archive and Compliance Solutions to highlight our complete end-to-end set of solutions.When asked to compare and contrast the architectures of the IBM System Storage DR550 with EMC Centera, I explainedthat the DR550 optimizes the use of online disk access for the most recent data. For example, if you aregoing to keep data for 10 years, maybe you keep the most recent 12 months on disk, and the rest is moved,using policy-based automation, to a tape library for the remaining nine years. This means that the disk insidethe DR550 is always being used to read and write the most recent data, the data you are most likely to retrievefrom an archive system. Data older than a year is still accessible, but might take a minute or two for the tapelibrary robot to fetch.The EMC Centera, on the other hand, is a disk-only solution. It offers no option to move older data to tape,nor the option to spin-down the drives to conserve power. It fills up after the same 12 months or so, and then you get towatch it the remaining nine years, consuming electricity and heating your data center.
I don't know about you, butI have never seen anyone purposely put in "space heaters" into their data center, but certainly a full EMC Centeradoes little else. Both devices use SATA drives and support disk mirroring between locations, but IBM DR550 offers dual-parity RAID-6, and supports encryption of the data on both the disk and the tape in the DR550. EMC Centerastill uses only RAID-5, and has not yet, as far as I know, offered any level of encryption. IBM System StorageDR550 was clocked at about three times faster than Centera at ingesting new archive objects over a 1GbE Ethernet connection.
|This last photo is me and fellow IBMer Adriana Mondragón. She was one of my students in the [System Storage Portfolio Top Gun class],last February in Guadalajara, Mexico.She graduated in the top 10 percent of her group, earning her the prestigious titleof "Top Gun" storage sales specialist.|
The conference wrapped up with a Mexican lunch with a traditional Mariachi band. I took pictures, but figured you allalready know what [Mariachi players] look like, and I didn't wantto detract from the otherwise serious tone of this blog post! This was the first System Storage Symposium in Mexico, butbased on its success, we might continue these annually.
technorati tags: IBM, Storage Symposium, Mexico, Cuernavaca, McAllen, Texas, Ian Henderson, Camino Real, Sumiya, Hachimaki, Mike Griese, Dave Larimer, John Hamano, SVC, VTL, SOFS, NAS, TSM, TotalStorage, Productivity Center, Cyntia Martinez, Claudia Aviles, Cesar Campos, Claudia Lopez, archive, compliance, DR550, NENR, EMC, Centera, SATA, RAID-5, RAID-6, encryption, Adriana Mondragon, Top Gun, Guadalajara,
I have created blog categories, based on our System Storage offering matrix, which you can track individually:
- Disk systems, including the IBM System Storage DS Family of products, SAN Volume Controller, N series, as well as features unique to these products, such as FlashCopy, MetroMirror, or SnapLock.
- Tape systems, including the IBM System Storage TS Family of products, tape-related products in the Virtualization Engine portfolio, drives, libraries and even tape media.
- Storage Networking offerings, from Brocade, McData, Cisco and others, such as switches, routers and directors.
- Infrastructure management, including IBM TotalStorage Productivity Center software, IBM Tivoli Provisioning Manager, IBM Tivoli Intelligent Orchestrator, and IBM Tivoli Storage Process Manager.
- Business Continuity, including IBM Tivoli Storage Manager, Tivoli CDP for Files, Productivity Center for Replication software component, Continuous Availability for Windows (CAW), Continuous Availability for AIX (CAA).
- Lifecycle and Retention offerings, including our IBM System Storage DR550, DR550 Express, GPFS, Tivoli Storage Manager Space Management for UNIX, Tivoli Storage Manager HSM for Windows, and DFSMS.
- Storage services, including consulting, assessments, design, deployment, management and outsourcing.
Continuing this week's theme on Enterprise Applications, I thought that since I mentioned Lotus Notes in my discussion ofSAP yesterday, that I would cover Microsoft Exchange today.
IBM and Microsoft is the ultimate example of "Coopetition". Both companies develop popular operating systems. Microsoft's "Xbox 360" gaming console uses IBM processors. Microsoft Exchange and IBM Lotus Domino are the Coke-and-Pepsi dominant players in the email marketplace, with Microsoft slightly in the lead, as seen on this graph[Lotus Notes/Domino marketshare growing] from fellow IBM Lotus blogger Alan Lepofsky.And now, Microsoft is getting serious about participating in the storage software business, with its strong support for iSCSI and its SharePoint product. For this post, I will focus just on email.
For those not familiar with both Microsoft and IBM products, I offer the simple cheat-sheet below:
Microsoft Outlook (client)::IBM Lotus Notes (client)
Microsoft Exchange (server)::IBM Lotus Domino (server)
- Server/Storage Considerations
Email has become the primary collaboration tool for most businesses, raising it to the level of "mission-critical".Microsoft has introduced its new Exchange 2007 to replace the existing Exchange 2003. Here are the key differences:
|Exchange 2003||Exchange 2007|
|Windows 2000 or 2003||Windows 2003|
|Runs on 32-bit x86||Requires 64-bit EM64T or AMD64, but Itanium IA64 not supported|
|Two(2) server roles||Five(5) server roles|
|Edge Server Role for combating SPAM|
|Unified Messaging services to combine voicemail, email, fax|
|5 storage groups||50 storage groups per server on Enterprise edition|
|5 databases||50 databases per server on Enterprise edition (max 5 per storage group)|
|NAS or NTFS-formatted block disk||NTFS-formatted block disk recommended|
Obviously, Exchange only runs on Windows operating system. The change from 32-bit to 64-bit means that many Exchange 2003 customers have not yet migrated over, and perhapsnow is a good time to point out alternative email servers on more reliable operating system platforms.For example, in addition to Windows 2003, Lotus Domino runs on IBM AIX, Linux on x86, Linux on System z, Sun Solaris, i5/OS on System i, and z/OS.
Another Linux alternative to Microsoft Exchange is Bynari InsightServer, which allows you to use your existing Windows-based Microsoft Outlook clients, swapping out only the server. This approach can be used when consolidating Windows servers to Linux virtual images on System z mainframe.Linux desktops can run [Ximian Evolution] to attach to either Bynari server, or Windows-based Microsoft Exchange server.Linux Journal offers a few articles on this:[Understanding and Replacing Microsoft Exchange, andExchange Functionality for Linux].
As with [Exchange 2003 editions], the new Exchange 2007 comes in both ["Standard" and "Enterprise" editions]. With all the newroles supported, you now can limit your "Mailbox Storage Server" role as Enterprise, and have the other roles, likeEdge and Hub, as simply "Standard" instead. Enterprise is about 5x more expensive than Standard, so that can makea difference.With Exchange 2003, the big difference was that "Standard" supported only 16GB, versus 16TB with "Enterprise",making "Standard" impractical for all but the smallest company. In the new Exchange 2007, both Standard and Enterprise support 16TB.
Exchange 2007 is also less IOPS-intensive. Thanks to 64-bit addressing, it generates about 75 percent fewer IOPS than Exchange 2003 for comparable configurations. This is good becauseaccording to a 2006 Radicati Group survey, the average corporate employee gets 84 emails per day, averaging 10MBdaily ingestion, and this is expected to grow to 15.8MB daily ingestion by 2008. The number of mailboxes worldwideis growing at a rate of 16 percent per year.
IBM System Storage is a Microsoft Gold certified partner, and participates in Microsoft's Exchange Solution Reviewed Program [ESRP].Both IBM DS8000 and DS4000 series are certified under this program, using a testbed called Jetstress.Those considering IBM System Storage N series can use Exchange 2007 with NTFS-formatted LUNs via FCP or iSCSIattachment.
- Backup and Business Continuity
Back in 2003, the Meta Group found that 80 percent of organizations surveyed felt access to email was more importantthan telephone service, and that 74 percent believed being without email would present a greater hardship thanlosing telephone service. These percentages are probably higher today, with websiteslike ["Crackberry.com"] to cater to those addicted to theirRIM Blackberry hand-held devices.
IBM Tivoli Storage Manager can provide backup and recovery support for Microsoft Exchange.TSM for Mail supports both Microsoft Exchange and Lotus Domino. TSM for Copy Services can use MicrosoftVolume Shadow Copy Services (VSS) interfaces. I blogged about this before, back in June[Exchange 2003 VSS Snapshot Backup Whitepaper], and now there TSM has support for Exchange 2007 as well.
Interestingly, Exchange 2007 has some built-in"Business Continuity" features. Of the ones below, Standard edition has LCR only, Enterprise edition gives you the full set.
- Local Continuous Replication (LCR):In this approach, a single server ships update logs from the active storage group on one disk system over to a passivecopy on a secondary disk system, presumably within 10km FCP distance. These logs can then be forward-applied to thepassive copy. This is sometimes called "database shadowing".
- Cluster Continuous Replication (CCR):This is based on two servers in an active/passive MSCS cluster. First server is attached to the primary disk system,and ships logs to the passive copy attached to the second server.
- Standby Continuous Replication (SCR):For the MSCS cluster-averse customer, SCR is based on two independent servers that are in two locations. In the event of failure on thefirst, scripts can be run to switch over to the second server. Each server has its own disk system.
- Single Copy Clusters (SCC):This is for customers who have existing systems, but not recommended for new customers. An MSCS cluster, where both active andpassive servers are connected to the same single disk system. The disk array can be a single point of failure (SPOF) in this environment.You could mitigate risks by using IBM's disk mirroring in this situation, but then you are left coordinating those copies with new servers at the remote location.
- Archive Support
It is estimated that as much as 75 percent of a company's intellectual property (IP) can be found somewhere in their email repository. Email is often requested in lawsuits and regulatory investigations. According to the Workplaceemail IM & blogging 2006 survey by AMA and the ePolicy Institute, 24 percent of organizations have be subpoenaed by courts and regulators, and another 15 percent have gone to court in lawsuits triggered by employee emails.
New regulations now mandate that emails are archived, protected against tampering and unauthorized access, and kept for a specific amount of time, or until certain conditions are met. According to a 2004 CSI and FBI Computer Crime and Security survey, 78 percent of organizations were hit by viruses (the rest must have been running Linux, AIX, i5/OS or z/OS!)and 37 percent reported unauthorized access to confidential information.
IBM offers software to archive emails. IBM CommonStore software supports both Microsoft Exchange and Lotus Domino.For SMB customers, we made things easier with the [IBM CommonStore eMail Archiving Preload Solution], an appliance which I mentioned in [Day 2 Storage Symposium].
- What's Next
According to Gartner, over 60 million people will be doing some form of telecommuting, so access Microsoft hasbeen working on extending the reach of email beyond Outlook client. There is now "Outlook Web Access" thatprovides browser-based access, "Outlook Mobile" to provide text access from cellular phones, and even "Outlook Voice Access" which allows you to listen to your emails from any phone. These are all part of the new Unified MessagingServices feature.
Microsoft is also teaming up with SAP, with a new offering called Duet. See the [SAP and Microsoft Introduce Duet] press release for more details.
It might be a while before all these are commonly deployed, but at least it is something to look forward to!
technorati tags: IBM, Microsoft, coopetition, Xbox 360, Exchange, Lotus, Notes, Domino, client, server, EM64T, AMD64, IA64, Itanium, Alan Lepofsky, Unified Messaging, services, Bynari, Ximian, roles, standard, enterprise, edition, ESRP, Jetstress, Edge, Hub, IOPS, NAS, NTFS, Blackberry, Crackberry, Windows, Linux, AIX, z/OS, i5/OS, VSS, CommonStore, Gartner, Outlook, web, access, mobile, voice, SAP, Duet
Wrapping up my week's theme on IBM's acquisition XIV, we have gotten hundreds of positive articles and reviews in the press, but has caused quite a stir with the[Not-Invented-Here
] folks at EMC.We've heard already from EMC bloggers [Chuck Hollis
] and [Mark Twomey
].The latest is fellow EMC blogger BarryB's missive [Obligatory "IBM buys XIV" Post
], which piles on the "Fear, Uncertainty and Doubt" [FUD
], including this excerpt here:
In a block storage device, only the host file system or database engine "knows" what's actually stored in there. So in the Nextra case that Tony has described, if even only 7,500-15,000 of the 750,000 total 1MB blobs stored on a single 750GB drive (that's "only" 1 to 2%) suddenly become inaccessible because the drive that held the backup copy also failed, the impact on a file system could be devastating. That 1MB might be in the middle of a 13MB photograph (rendering the entire photo unusable). Or it might contain dozens of little files, now vanished without a trace. Or worst yet, it could actually contain the file system metadata, which describes the names and locations of all the rest of the files in the file system. Each 1MB lost to a double drive failure could mean the loss of an enormous percentage of the files in a file system.
And in fact, with Nextra, the impact will be across not just one, but more likely several dozens or even hundreds of file systems.
Worse still, the Nextra can't do anything to help recover the lost files.
Nothing could be further from the truth. If any disk drive module failed, the system would know exactly whichone it was, what blobs (binary large objects) were on it, and where the replicated copies of those blobs are located. In the event of a rare double-drive failure, the system would know exactly which unfortunate blobs were lost, and couldidentify them by host LUN and block address numbers, so that appropriate repair actions could be taken from remote mirrored copies or tape file backups.
Second, nobody is suggesting we are going to put a delicateFAT32-like Circa-1980 file system that breaks with the loss of a single block and requires tools like "fsck" to piece back together. Today's modern file systems--including Windows NTFS, Linux ext3, and AIX JFS2--are journaled and have sophisticated algorithms tohandle the loss of individual structure inode blocks. IBM has its own General Parallel File System [GPFS] and corresponding Scale out File Services[SOFS], and thus brings a lotof expertise to the table.Advanced distributed clustered file systems, like [Google File System] and Yahoo's [Hadoop project] take this one step further, recognizing that individual node and drive failures at the Petabyte-scale are inevitable.
In other words, XIV Nextra architecture is designed to eliminate or reduce recovery actions after disk failures, not make them worse. Back in 2003, when IBM introduced the new and innovative SAN Volume Controller (SVC), EMCclaimed this in-band architecture would slow down applications and "brain-damage" their EMC Symmetrix hardware.Reality has proved the opposite, SVC can improve application performance and help reduce wear-and-tear on the manageddevices. Since then, EMC acquired Kashya to offer its own in-band architecture in a product called EMC RecoverPoint, that offers some of the features that SVC offers.
If you thought fear mongering like this was unique to the IT industry, consider that 105years ago, [Edison electrocuted an elephant]. To understand this horrific event, you have to understand what was going on at the time.Thomas Edison, inventor of the light bulb, wanted to power the entire city of New York with Direct Current(DC). Nikolas Tesla proposed a different, but more appropriate architecture,called Alternating Current(AC), that had lower losses over distances required for a city as large and spread out as New York. But Thomas Edison was heavily invested in DC technology, and would lose out on royalties if ACwas adopted.In an effort to show that AC was too dangerous to have in homes and businesses, Thomas Edison held a pressconference in front of 1500 witnesses, electrocuting an elephant named Topsy with 6600 volts, and filmed the event so that it could be shown later to other audiences (Edison invented the movie camera also).
Today's nationwide electric grid would not exist without Alternating Current.We enjoy both AC for what it is best used for, and DC for what it is best used for. Both are dangerous at high voltage levels if not handled properly. The same is the case for storage architectures. Traditional high-performance disk arrays, like the IBM System Storage DS8000, will continue to be used for large mainframe applications, online transaction processing and databases. New architectures,like IBM XIV Nextra, will be used for new Web 2.0 applications, where scalability, self-tuning, self-repair,and management simplicity are the key requirements.
(Update: Dear readers, this was meant as a metaphor only, relating the concerns expressed above thatthe use of new innovative technology may result in the loss or corruption of "several dozen or even hundreds of file systems" and thus too dangerous to use, with an analogy on the use of AC electricity was too dangerous to use in homes. To clarify, EMC did not re-enact Thomas Edison's event, no animalswere hurt by EMC, and I was not trying to make political commentary about the current controversy of electrocution as amethod of capital punishment. The opinions of individual bloggers do not necessarily reflect the official positions of EMC, and I am not implying that anyone at EMC enjoys torturing animals of any size, or their positions on capital punishment in general. This is not an attack on any of the above-mentioned EMC bloggers, but rather to point out faulty logic. Children should not put foil gum wrappers in electrical sockets. BarryB and I have apologized to each other over these posts for any feelings hurt, and discussion should focus instead on the technologies and architectures.)
While EMC might try to tell people today that nobody needs unique storage architectures for Web 2.0 applications, digital media and archive data, because their existing products support SATA disk and can be used instead for these workloads, they are probably working hard behind the scenes on their own "me, too" version.And with a bit of irony, Edison's film of the elephant is available on YouTube, one of the many Web 2.0 websites we are talking about. (Out of a sense of decency, I decided not to link to it here, so don't ask)
technorati tags: IBM, XIV, EMC, BarryB, FUD, Nextra, blob, Thomas Edison, Nikolas Tesla, Web2.0, scalability, Petabyte-scale, self-tuning, self-repair, DS8000, disk, systems, Topsy, elephant, light bulb, movie camera, invention, DC, AC, YouTube
This week I am at the Data Center Conference 2009 in Las Vegas. There are some 1700 people registered this year for this conferece, representing a variety of industries like Public sector, Services, Finance, Healthcare and Manufacturing. A survey of the attendees found:
- 55 percent are at this conference for the first time.
- 18 percent once before, like me
- 15 percent two or three times before
- 12 percent four or more times before
Plans for 2010 IT budgets were split evenly, one third planning to spend more, one third planning to spend about the same, and the final third looking to cut their IT budgets even further than in 2009. The biggest challenges were Power/Cooling/Floorspace issues, aligning IT with Business goals, and modernizing applications. The top three areas of IT spend will be for Data Center facilities, modernizing infrastructure, and storage.
There are six keynote sessions scheduled, and 66 breakout sessions for the week. A "Hot Topic" was added on "Why the marketplace prefers one-stop shopping" which plays to the strengths of IT supermarkets like IBM, encourages HP to acquire EDS and 3Com, and forces specialty shops like Cisco and EMC to form alliances.
Day 2 began with a series of keynote sessions. Normally when I see "IO" or "I/O", I immediately think of input/output, but here "I&O" refers to Infrastructure and Operations.
- Business Sensitivity Analysis leads to better I&O Solutions
The analyst gave examples from Alan Greenspan's biography to emphasize his point that what this financial meltdown has caused is a decline in trust. Nobody trusts anyone else. This is true between people, companies, and entire countries. While the GDP declined 2 percent in 2009 worldwide, it is expected to grow 2 percent in 2010, with some emerging markets expected to grow faster, such as India (7 percent) and China (10 percent). Industries like Healthcare, Utilities and Public sector are expected to lead the IT spend by 2011.
While IT spend is expected to grow only 1 to 5 percent in 2010, there is a significant shift from Capital Expenditures (CapEx) to Operational Expenses (OpEx). Five years ago, OpEx used to represent only 64 percent of IT budget in 2004, but today represents 76 percent and growing. Many companies are keeping their aging IT hardware longer in service, beyond traditional depreciation schedules. The analyst estimated over 1 million servers were kept longer than planned in 2009, and another 2 million will be kept longer in 2010.
An example of hardware kept too long was the November 17 delay of 2000 some flights in the United States, caused by a failed router card in Utah that was part of the air traffic control system. Modernizing this system is estimated to cost $40 billion US dollars.
Top 10 priorities for the CIO were Virtualization, Cloud Computing, Business Intelligence (BI), Networking, Web 2.0, ERP applications, Security, Data Management, Mobile, and Collaboration. There is a growth in context-aware computing, connecting operational technologies with sensors and monitors to feed back into IT, with an opportunity for pattern-based strategy. Borrowing a concept from the military, "OpTempo" allows a CIO to speed up or slow down various projects as needed. By seeking out patterns, developing models to understand those patterns, and then adapting the business to fit those patterns, a strategy can be developed to address new opportunities.
- Infrastructure and Operations: Charting the course for the coming decade
This analyst felt that strategies should not just be focused looking forward, but also look left and right, what IBM calls "adjacent spaces". He covered a variety of hot topics:
- 65 percent of energy running x86 servers is doing nothing. The average x86 running only 7 to 12 percent CPU utilization.
- Virtualization of servers, networks and storage are transforming IT to become on big logical system image, which plays well with Green IT initiatives. He joked that this is what IBM offered 20 years ago with Mainframe "Single System Image" sysplexes, and that we have come around full circle.
- One area of virtualization are desktop images (VDI). This goes back to the benefits of green-screen 3270 terminals of the mainframe era, eliminating the headaches of managing thousands of PCs, and instead having thin clients rely heavily on centralized services.
- The deluge in data continues, as more convenient access drives demand for more data. The anlyst estimates storage capacity will increase 650 percent over the next five years, with over 80 percent of this unstructured data. Automated storage tiering, ala Hierarchical Storage Manager (HSM) from the mainframe era, is once again popular, along with new technologies like thin provisioning and data deduplication.
- IT is also being asked to do complex resource tracking, such as power consumption. In the past IT and Facilities were separate budgets, but that is beginning to change.
- The fastest growing social nework was Twitter, with 1382 percent growth in 2009, of which 69 percent of new users that joined this year were 39 to 51 years old. By comparison, Facebook only grew by 249 percent. Social media is a big factor both inside and outside a company, and management should be aware of what Tweets, Blogs, and others in the collective are saying about you and your company.
- The average 18 to 25 year old sends out 4000 text messages per month. In 24 hours, more text messages are sent out than people on the planet (6.7 billion). Unified Communications is also getting attention. This is the idea that all forms of communication, from email to texts to voice over IP (VoIP), can be managed centrally.
- Smart phones and other mobile devices are changing the way people view laptops. Many business tasks can be handled by these smaller devices.
- It costs more in energy to run an x86 server for three years than it costs to buy it. The idea of blade servers and componentization can help address that.
- Mashups and Portals are an unrecognized opportunity. An example of a Mashup is mapping a list of real estate listings to Google Maps so that you can see all the listings arranged geographically.
- Lastly, Cloud Computing will change the way people deliver IT services. Amusingly, the conference was playing "Both Sides Now" by Joni Mitchell, which has the [lyrics about clouds]
Unlike other conferences that clump all the keynotes at the beginning, this one spreads the "Keynote" sessions out across several days, so I will cover the rest over separate posts.
technorati tags: lsc28, operations, gdc09, infrastructure, cloud+computing, twitter, facebook
On SearchStorage.com, my buddy Tony Asaro recaps the latest Storage Acquisition Frenzy
It has always been the case in fast pace technology areas that you can't tell the players without a program card, andthis is especially true for storage.
When analyzing each acquistion move, you need to think of what is driving it. What are the motives?Having been in the storage business 20 years now, and seen my share of acquisitions, both from within IBM,as well as competition, I have come up with the following list of motives.
Although slavery was abolished in the US back in the 1800's, and centuries earlier everywhere else, many acquisitionsseem to be focused on acquiring the people themselves, rather than the products or client list. I have seen statistics such as "We retained 98% of the people!" In reality, these retentions usually involve costly incentives,sign-in bonuses, stock options, and the like. Desptie this, people leave after a few years, often because ofpersonality or "corporate culture" clash. For example, many former STK employees seem to be leaving after their company was acquired by Sun Microsystems.
If you can't beat them, join them. Acquisitions can often be used by one company to raise its ranking in marketshare, eliminating smaller competitors. And now that you have acquired their client list, perhaps you can sellthem more of your original set of products!
Symantec had acquired Veritas, which in turn had acquired a variety of other smaller players, and the end result is that they are now #1 backup software provider, even though none of theirproducts holds a candle to IBM's Tivoli Storage Manager. Meanwhile, EMC acquired Avamar to try to get more into the backup/recovery game, but most analysts still find EMC down in the #4 or #5 place in this category.
Next month,Brocade's acquisition of McData should take effect, furthering its marketshare in SAN switch equipment.
Prior to my current role as "brand market strategist" for System Storage, I was a "portfolio manager" where wetried to make sure that our storage product line investments were balanced. This was a tough job, as the investmentshad to balance the right development investments into different technologies, including patent portfolios.Despite IBM's huge research budget, I am not surprised that some clever inventions of new technologies comefrom smaller companies, that then get acquired once their results appear viable.
- Value Shift
The last motive is value shift. This is where companies try to re-invent themselves, or find that they are stuck in acommodity market rut, and wish to expand into more profitable areas.
LSI Logic acquisition of StoreAge is a good exampleof this. Most of the major storage vendors have already shifted to software and services to provide customer value,as predicted in 1990's by Clayton Christensen in his book "The Innovator's Dilemma". The rest are still strugglingto develop the right strategy, but leaning in this general direction.
I hope that provides some insight.[Read More]
I'm wrapping up my week in Latin America.
Yesterday morning, the entire country of Colombia suffered their worst black-out (power outage) in 22 years. 98% of the country was out for 4 1/2 hours.This is just 5 months after an outage that hit 25% of the country, December 7, 2006.Ironically, this one happened the week I am here explaining the need for Business Continuity plans to IBM Business Partners from Argentina, Peru, Velenzuela, Ecuador and Colombia. As is oftenthe case, people often need a real example to recognize the need for planning is important.
It reminded me of the Northeast Black-out of 2003 that impacted USA and Canada. I was speaking to a crowd of 800 people at the SHARE conference in Washington D.C. when it happened, and hundreds of pagers and cell-phones went off all at the same time. Although we were outside the effected area and had plenty of lighting, we ended up canceling therest of my talk, and many people left immediately to help execute their business continuity plans.Of course, terrorism was immediately assumed, but a final report showed that it was initiated in Ohiodue to overgrown trees, and then propagated due to a software bug to hundreds of other plants.
According to this morning's Bogota newspaper, "El Tiempo", nobody knows the root cause of yesterday's outage. Immediately, the country's leftist rebels were blamed, but now the leading theory is that it was initiated byoperator error (a technician touching something he shouldn't have), and then propagated by a faulty distribution system.
Another example of the need for a robust and resilient infrastructure, and appropropriate business continuity plans.
technorati tags: Colombia, black-out, Northeast, El Tiempo, Business Continuity, Infrastructure
As I mentioned in my post [Moving Over to MyDeveloperWorks
], those of us bloggers on IBM's DeveloperWorks are moving over to a new system called "MyDeveloperWorks" which has a host of new features.
Fortunately for me, I missed the note to volunteer to be one of the first bloggers on the block to volunteer to move over. I was traveling and decided not to deal with it until I got back.However, fellow IBM Master Inventor, Barry Whyte, was not so lucky. It is safe to say he was stupid enough to volunteer, and is probably regretting the decision every day since. In case you lost his RSS feed, or can't find him anymore on Google or whatever search engine, here is his[new blog].
Today, he posted an interesting discussion on [SVC Split Cluster - How it works].
As for my blog, I have asked to postpone the move until all the problems that Barry has encountered are resolved. That might be a awhile, but if you lose access to mine sometime in the near future, hopefully at least you have been warned as to what might have happened.
technorati tags: IBM, Barry Whyte, DeveloperWorks, MyDeveloperWorks
My theme this week was to focus on "Do-it-Yourself" solutions, such as the "open storage" concept presentedby Sun Microsystems, but it has morphed into a discussion on vendor lock-in. Both deserve a bit of furtherexploration.
There were several reasons offered on why someone might pursue a "Do-it-Yourself" course of action.
- Building up skills
In my post [Simply Dinners and Open Storage], I suggested that building a server-as-storage solution based on Sun's OpenSolaris operating system could serve to learn more about [OpenSolaris], and by extension, the Solaris operating system.Like Linux, OpenSolaris is open source and has distributions that run on a variety of chipsets, from Sun's ownSPARC, to commodity x86 and x86-64 hardware. And as I mentioned in my post [Getting off the island], a version of OpenSolaris was even shown to run successfully on the IBM System z mainframe.
"Learning by Doing" is a strong part of the [Constructivism] movement in education. TheOne Laptop Per Child [OLPC] uses this approach. IBM volunteers in Tucson and 40other sites [help young students build robots]constructed from [Lego Mindstorms]building blocks.Edward De Bono uses the term [operacy] to refer to the"skills of doing", preferred over just "knowing" facts and figures.
However, I feel OpenSolaris is late to the game. Linux, Windows and MacOS are all well-established x86-based operating systems that most home office/small office users would be familiar with, and OpenSolaris is positioning itself as "the fourth choice".
In my post[WashingtonGets e-Discovery Wakeup Call], I suggested that the primary motivation for the White House to switch from Lotus Notes over to Microsoft Outlookwas familiarity with Microsoft's offerings. Unfortunately, that also meant abandoning a fully-operational automated email archive system, fora manual do-it-yourself approach copying PST files from journal folders.
Familiarity also explains why other government employees might print out their emails and archive them on paperin filing cabinets. They are familiar with this process, it allows them to treat email in the same manner as they have treated paper documents in the past.
- Cost, Control and Unique Requirements
The last category of reasons can often result if what you want is smaller or bigger than what is availablecommercially. There are minimum entry-points for many vendors. If you want something so small that it is notprofitable, you may end up doing it yourself. On the other end of the scale, both Yahoo and Google ended up building their data centers with a do-it-yourself approach, because no commercial solutions were available atthe time. (IBM now offers [iDataPlex], so that has changed!)
While you could hire a vendor to build a customized solution to meet your unique requirements, it might turn outto be less costly to do-it-yourself. This might also provide some added control over the technologies and components employed. However, as EMC blogger Chuck Hollis correctly pointed out for[Do-it-yourself storage],your solution may not be less costly than existingoff-the-shelf solutions from existing storage vendors, when you factor in scalability and support costs.
Of course, this all assumes that storage admins building the do-it-yourself storage have enough spare time to do so. When was the last time your storage admins had spare time of any kind?Will your storage admins provide the 24x7 support you could get from established storage vendors? Will theybe able to fix the problem fast enough to keep your business running?
From this, I would gather that if you have storage admins more familiar with Solaris than Linux, Windows or MacOS,and select commodity x86 servers from IBM, Sun, HP, or Dell, they could build a solution that has less vendor lock-in than something off-the-shelf from Sun. Let's explore the fears of vendor lock-in further.
- The storage vendor goes out of business
Sun has not been doing so well, so perhaps "open storage" was a way to warn existing Sun storage customers thatbuilding your own may be the next alternative.The New York Times title of their article says it all:["Sun Microsystems Posts Loss and Plans to Reduce Jobs"]. Sun is a big company, so I don't expect them to close their doors entirely this year,but certainly fear of being locked-in to any storage vendor's solution gets worse if you fear the vendor might go out of business.
- The storage vendor will get acquired by a vendor you don't like
We've seen this before. You don't like vendor A, so you buy kit from vendor B, only to have vendor A acquire vendorB after your purchase. Surprise!
- The storage vendor will not support new applications, operating systems, or other new equipment
Here the fear is that the decisions you make today might prevent you from choices you want to make in the future.You might want to upgrade to the latest level of your operating system, but your storage vendor doesn't supportit yet. Or maybe you want to upgrade your SAN to a faster bandwidth speed, like 8 Gbps, but your storage vendordoesn't support it yet. Or perhaps that change would require re-writing lots of scripts using the existingcommand line interfaces (CLI). Or perhaps your admins would require new training for the new configuration.
- The storage vendor will raise prices or charge you more than you expect on follow-on upgrades
For most monolithic storage arrays, adding additional disk capacity means buying it from the same vendor as the controller. I heard of one company recently who tried to order entry-level disk expansion drawer, at a lower price, solely to move the individual disk drives into a higher-end disk system. Guess what? It didn't work. Most storage vendors would not support such mixed configurations.
If you are going to purchase additional storage capacity to an existing disk system, it should cost no more thanthe capacity price rate of your original purchase. IBM offers upgrades at the going market rate, but not all competitors are this nice. Some take advantage of the vendor lock-in, charging more for upgrades and pocketing the difference as profit.
Vendor lock-in represents the obstacles in switching vendors in the event the vendor goes out of business, failsto support new software or hardware in the data center, or charges more than you are comfortable with. These obstacles can make it difficult to switch storage vendors, upgrade your applications, or meet otherbusiness obligations. IBM SANVolume Controller and TotalStorage Productivity Center can help reduce or eliminate many of these concerns. IBMGlobal Services can help you, as much or as little, as you want in this transformation. Here are the four levelsof the do-it-yourself continuum:
|Let me figure it out myself||Tell me what to do||Help me do it||Do it for me|
|This is the self-service approach. Go to our website, download an [IBM Redbook], figure out whatyou need, and order the parts to do-it-yourself.||IBM Global Business Services can help understand your business requirementsand tell you what you need to meet them.||IBM Global Technology Services can help design, assemble and deploy asolution, working with your staff to ensure skill and knowledge transfer.||IBM Managed Storage Services can manage your storage, on-site at your location, or at an IBM facility. IBM provides a varietyof cloud computing and managed hosting services.|
So, if you are currently a Sun server or storage customer concerned about these latest Sun announcements, give IBM a call, we'll help you switch over!
technorati tags: do-it-yourself, OpenSolaris, Solaris, Sun, Linux, SPARC, Yahoo, Google, iDataPlex, x86, x86-64, x64, mainframe, EMC, Chuck Hollis, HP, Dell, SAN, monolithic, disk, storage, system, arrays, open storage, NYT, New York Times, vendor lock-in, IBM, Global Services, GBS, GTS, SVC, TotalStorage, Productivity Center, Managed Storage Services, cloud computing
Continuing this week's theme of doing important things without leaving town, I present our results foran exciting project I started earlier this year.
For seven weeks, my coworker Mark Haye and I voluntarily led a class of students here in Tucson, Arizona in an after-school pilot project to teach the ["C" programming language] using [LEGO® Mindstorms® NXT robots]. The ten students, boys and girls ages 9 to 14 years old, were already part of the FIRST [For Inspiration and Recognition of Science and Technology] program, and participated in FIRST Lego League[FLL] robot competitions.Since the students were already familiar building robots, and programming them with a simple graphical system of connecting blocks that perform actions. However, to compete in the next level of robot competitions, FIRST Tech Challenge [FTC],we need to leave this simple graphical programming behind, and upgrade to more precise "C" programming.
Mark is a software engineer for IBM Tivoli Storage Manager and has participated in FLL competitions over the past nine years. This week, he celebrates his 25th anniversary at IBM, and I celebrate my 23rd. The teacher, Ms. Ackerman, and the students referred to us as "Coach Mark" and "Coach Tony".
This was the first time I had worked with LEGO NXT robots. For those not familiar with these robots, you can purchase a kit at your localtoy store. In addition to regular LEGO bricks, beams, and plates, there are motors, wheels, and sensors. A programmable NXT brick has three outputs (marked A,B, and C) to control three motors, and four inputs (marked 1,2,3,4) to receive values from sensors. Programs are written and compiled on laptops and then downloaded to the NXT programmable brick through an USB cable, or wirelessly via Bluetooth.
|In the picture shown, an image of the Mars planetary surface is divided into a grid with thick black lines.A light sensor between the front two wheels of the robot is over the black line.|
We used the [RobotC programming firmware] and integrated development environment (IDE) from [Carnegie Mellon University].The idea of this pilot was to see how well the students could learn "C". With only a few hours after class on each Wednesday, could we teach young students "C" programming in just seven weeks?
My contribution? I have taught both high school and college classes, and spent over 15 years programming for IBM, so Mark asked me to help.We started with a basic lesson plan:
- A brief history of the "C" language
- Understanding statements and syntax
- Setting motor speed and direction
- Compiling and downloading your first program
- Understanding the "while" loop
- Retrieving input sensor values
- Understanding the "if-then-else" statement
- Defining variables with different data types
- Manipulating string variables
- Writing a program for the robot to track along a black line on a white background.
- Understanding local versus global scope variables
- Writing a program for a robot to count black lines as it crosses them.
- Defining functions
- Perform left turns, right turns, and to cross a specific number of lines on a grid pattern to move the robot to a specific location.
- Mission Impossible: come up with a challenge to make the robot do something that would be difficult to accomplish using the previous NXT visual programming language.
At the completion of these seven weeks, I sat down to interview "Coach Mark"on his thoughts on this pilot project.
This is a practical programming skill. The "C" language is used throughout the world to program everything from embedded systems to operating systems, and even storage software. This would allow the robots to handle more precise movements, more accurate turns, and more complicated missions.
Can kids learn "C" in only seven weeks?
Part of the pilot project was to see how well the students could understand the material. They were already familiar with building the robots, and understood the basics of programming sensors and motors, so we were hoping this was a good foundation to work from. Some kids managed very well, others struggled.
Did everything go according to plan?
The first two weeks went well, turning on motors and having robots move forward and backward were easy enough. We seemed to lose a few students on week 3, and things got worse from there. However, several of the students truly surprised us and managed to implement very complicated missions. We were quite pleased with the results.
What kind of problems did the kids encounter?
Touch sensor required loops waiting for pressing. Motors did not necessarily turn as expected until more advanced methods were used. Making 90 degree left and right turns accurately was more difficult than expected.
Any funny surprises?
Yes, we had a Challenge Map representing the Mars planetary surface from a previous FLL competition that was dark red and divided into squares with thick black lines. An active light sensor returns a value of "0" (complete darkness) to "100" (bright white).However, the Mars surface had craters that were dark enough to be misinterpreted as a black line causing some unusual results. This required some enhanced programming techniques to resolve.
Did robots help or hurt the teaching process?
I think they helped. Rather than writing programs that just display "Hello World!" on a computer screen, the students can actually see robots move, and either do what they expect, or not!
And when the robots didn't do what they were expected to?
The students got into "debug" mode. They were already used to doing this from previous FLL competitions, but with RobotC, you can leave the USB cable connected (or use wireless Bluetooth) and actually gather debugging information while the robot is running, to see the value of sensors and other variables and help determine why things are not working properly.
Any applicability to the real world of storage?
We have robots in the IBM System Storage TS3500 tape library. These robots scan bar code labels, pull tapes out of shelves and mount them into drives.The programming skills are the same needed for storage software, suchas IBM Tivoli Storage Manager or IBM Tivoli Storage Productivity Center.
The world is becoming smarter, instrumented with sensors, interconnected over a common network, and intelligent enough to react and respond correctly. The lessons of reading sensor values and moving motors can be considered the first step in solutions that help to make a smarter planet.
technorati tags: IBM, C programming language, LEGO, Mindstorms, NXT, FLL, FIRST, robot, RobotC, Bluetooth, USB, TSM, Productivity Center, TS3500, smarter planet
Today, IBM announced a software/server/storage combo that out-performed both HP and Sun. Here is an excerpt from the[IBM Press Release
IBM today announced that its recently introduced E7100 Balanced Warehouse(TM), consisting of the IBM POWER6(TM) processor-based System p(TM) 570 server, the IBM System Storage(TM) DS4800 and DB2(R) Warehouse 9.5, is already lapping the field in performance. The new data warehousing solution is now ranked number one in both performance and in price/performance in the TPC-H business:
- 2 x speed-up over HP system with Oracle 10g and equal number of cores;
- 3.17 x speed up over Sun with Oracle 10g and 38 percent price advantage;
- A new world record by loading 10 terabytes (TB) data at six TB per hour (TB/hr).
"These latest benchmark results further prove IBM's strength and leadership in the business intelligence arena," said Scott Handy, vice president of marketing and strategy, IBM Power Systems. "The E7100 Balanced Warehouse is a complete data warehousing solution comprised of pre-tested, scalable and fully integrated system and storage components, designed to get customers up and running quickly to get to the real benefit of unprecedented business insight and intellect."
Those not familiar with the [IBM Balanced Warehouse], it is the productized version of DB2's ["Balanced Configuration Unit" or BCU] reference configuration. The IBM Balanced Warehouse presents a pre-tested, pre-configured solution for Business Intelligence (BI) applications. These are in the form of "building blocks" thatcan be combined to get to the size you need, with incremental growth as your business expands. Each building block expertly matches the CPU processor and RAM memory of the server, with the appropriate I/O bus, cabling, and capacity of the disk system, resulting in optimal performance.
IBM DB2 software is designed to allow you to combine multiple building blocks into a single system image. This greatly simplifies your data warehouse deployment, and can help ensure success. For example, for a 50TB deployment, you can take a base 2TB building block, add 24 more, each with 2TB of disk capacity, and have a completely balanced environment. IBM clients have built systems over 300TB in this manner with these building blocks.
The IBM Balanced Warehouse is offered in several configurations:
The [C-class models] are designed for SMB customers, employing an IBM System x server with internal or direct attached EXP3000 disk.
The [D-class models] are the next step up, offering department-level data marts and data warehouse for larger deployments, employing an IBM System x server with EXP3000 or System Storage DS3400 entry level disk.
The [E-class models] represent our top-of-the line configurations for our largest enterprise deployments. The [E6000] run Linux on an IBM System x server with System Storage DS48000 disk. The [E7000] run AIX on an IBM System p575 server with DS4800 disk. The new [E7100] mentioned above runsAIX on a POWER6-based IBM System p570 with DS4800 disk.
As I have mentioned before, in my post[Supermarketsand Specialty Shops],companies are looking for complete solutions, preferably from a single vendor like IBM, HP and Sun, rather than buying piece part components from different vendors and hoping the combined ["Frankenstein"] configuration meets business requirements.
The DS4800 is an obvious choice for this solution, providing an excellent balance of cost and performance, in a modular packaging that is ideal for the incremental growth design inherent in the IBM Balanced Warehouse philosophy. To learn more about this disk system, see the official [DS4800 website] for details, descriptions and specifications.
technorati tags: IBM, HP, Sun, Balanced Warehouse, balanced, configuration, unit, BCU, Oracle, 10g, EXP3000, DS3400, DS4800, disk, storage, system, datamart, data, warehouse, Business Intelligence, BI, Frankenstein, supermarket, specialty shop, E6000, E7000, E7100
Eventually, there comes a time to drop support for older, outdated programs that don't meet the latest standards. I had several complain that they could not read my last post on Internet Explorer 6. The post reads fine on more modern browsers like Firefox 3 and even Google's Chrome browser, but not IE6.
Google confirms that warnings are appearing:
[Official: YouTube to stop IE6 support
My choice is to either stop embedding YouTube videos, some of which are created by my own marketing team specifically on my behalf, or drop support for IE6. I choose the latter. If you are still using IE6, please consider switching to Firefox 3 or Google Chrome instead.
technorati tags: IBM, IE6, YouTube, Google, Chrome, Firefox
I'm in the Malev lounge at the Budapest Airport, waiting for my flight to return back to Tucson.
My buddy Marc Farley from EqualLogic points to a great InfoStorarticle by Ann Silverthorn titled The benefits of SANs for SMBs.
Back in the late 1980's and early 1990's, I was one of the architects for DFSMS on z/OS, and customers always asked, "What is the clip level?", in other words, how big does a customer have to be to take advantage of DFSMS. We worked it out that if you had more than 100GB of disk data, DFSMS is worthwhile. DFSMS is now just standard by default, as everyone now easily has more than 100GB of data.
Later, in the late 1990's, I worked on Linux for System z. Again, customers asked how many Linux guest images would justify deploying applications on a mainframe. We worked it out to about 10 images. 10 Linux logical partitions, or Linux guests under z/VM was enough to cost justify the entire investment.
So what is the "clip level" for SANs? How many servers does an SMB need to have to justify deploying a SAN? IBM announced the new BladeCenter S designed specifically for mid-sized companies, 100 to 1000 employees, typically running 25 to 45 servers. However, I suspect companies as small as 7-10 servers would probably benefit from deploying an FC or IP SAN.
What do you think? Send me a comment on how many servers should be the clip level.
technorati tags: IBM, Marc Farley, EqualLogic, Ann Silverthorn, SMB, SAN, IP, iSCSI, FC, Linux, DFSMS, z/OS, BladeCenter, Budapest