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Tony Pearson is a Master Inventor and Senior IT Specialist for the IBM System Storage product line at the
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author of the Inside System Storage series of books. This blog is for the open exchange of ideas relating to storage and storage networking hardware, software and services. You can also follow him on Twitter @az990tony.
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After the amount of flack Jon Toigo had to endure for not giving advanced notice to his upcoming Webcast, I thought I would better remind people about my own Webinar that is happening next Tuesday, August 23.
So here's the scoop, next Tuesday I will be presenting [The Future of Storage], August 23, 1pm to 2pm EDT. You can register to attend at the [Infoboom Registration Page]. Infoboom is a social community for business and IT leaders of small and midsize businesses brought to you by IBM.
But that's not all! After the webinar, I will then travel to various cities for face-to-face lectures. Here are the first two:
September 7 - Indianapolis
September 8 - Boston area
If you are near either of these two locations, contact your local IBM storage specialist or IBM business partner to participate.
Well, I'm back safely from my tour of Asia. I am glad to report that Tokyo, Beijing and Kuala Lumpur are pretty much how I remember them from the last time I was there in each city. I have since been fighting jet lag by watching the last thirteen episodes of LOST season 6 and the series finale.
Recently, I have started seeing a lot of buzz on the term "Storage Federation". The concept is not new, but rather based on the work in database federation, first introduced in 1985 by [A federated architecture for information management] by Heimbigner and McLeod. For those not familiar with database federation, you can take several independent autonomous databases, and treat them as one big federated system. For example, this would allow you to issue a single query and get results across all the databases in the federated system. The advantage is that it is often easier to federate several disparate heterogeneous databases than to merge them into a single database. [IBM Infosphere Federation Server] is a market leader in this space, with the capability to federate DB2, Oracle and SQL Server databases.
Storage expansion: You want to increase the storage capacity of an existing storage system that cannot accommodate the total amount of capacity desired. Storage Federation allows you to add additional storage capacity by adding a whole new system.
Storage migration: You want to migrate from an aging storage system to a new one. Storage Federation allows the joining of the two systems and the evacuation from storage resources on the first onto the second and then the first system is removed.
Safe system upgrades: System upgrades can be problematic for a number of reasons. Storage Federation allows a system to be removed from the federation and be re-inserted again after the successful completion of the upgrade.
Load balancing: Similar to storage expansion, but on the performance axis, you might want to add additional storage systems to a Storage Federation in order to spread the workload across multiple systems.
Storage tiering: In a similar light, storage systems in a Storage Federation could have different capacity/performance ratios that you could use for tiering data. This is similar to the idea of dynamically re-striping data across the disk drives within a single storage system, such as with 3PAR's Dynamic Optimization software, but extends the concept to cross storage system boundaries.
To some extent, IBM SAN Volume Controller (SVC), XIV, Scale-Out NAS (SONAS), and Information Archive (IA) offer most, if not all, of these capabilities. EMC claims its VPLEX will be able to offer storage federation, but only with other VPLEX clusters, which brings up a good question. What about heterogenous storage federation? Before anyone accuses me of throwing stones at glass houses, let's take a look at each IBM solution:
IBM SAN Volume Controller
The IBM SAN Volume Controller has been doing storage federation since 2003. Not only can IBM SAN Volume Controller bring together storage from a variety of heterogenous storage, the SVC cluster itself can be a mix of different hardware models. You can have a 2145-8A4 node pair, 2145-8G4 node pair, and the new 2145-CF8 node pair, all combined together into a single SVC cluster. Upgrading SVC hardware nodes in an SVC cluster is always non-disruptive.
IBM XIV storage system
The IBM XIV has two kinds of independent modules. Data modules have processor, cache and 12 disks. Interface modules are data modules with additional processor, FC and Ethernet (iSCSI) adapters. Because these two modules play different roles in an XIV "colony", that number of each type is predetermined. Entry-level six-module systems have 2 interface and 4 data modules. Full 15-module systems have 6 interface and 9 data modules. Individual modules can be added or removed non-disruptively in an XIV.
IBM Scale-Out NAS
The SONAS is comprised of three kinds of nodes that work together in concert. A management node, one or more interface nodes, and two or more storage nodes. The storage nodes are paired to manage up to 240 nodes in a storage pod. Individual interface or data nodes can be added or removed non-disruptively in the SONAS. The underlying technology, the General Parallel File System, has been doing storage federation since 1996 for some of the largest top 500 supercomputers in the world.
IBM Information Archive (IA)
For the IA, there are 1, 2 or 3 nodes, which manages a set of collections. A collection can either be file-based using industry-standard NAS protocols, or object-based using the popular System Storage™ Archive Manager (SSAM) interface. Normally, you have as many collections as you have nodes, but nodes are powerful enough to manage two collections to provide N-1 availability. This allows a node to be removed, and a new node added into the IA "colony", in a non-disruptive manner.
Even in an ant colony, there are only a few types of ants, with typically one queen, several males, and lots of workers. But all the ants are red. You don't see colonies that mix between different species of ants. For databases, federation was a way to avoid the much harder task of merging databases from different platforms. For storage, I am surprised people have latched on to the term "federation", given our mixed results in the other "federations" we have formed, which I have conveniently (IMHO) ranked from least effective to most effective:
The Union of Soviet Socialist Republics (USSR)
My father used to say, "If the Soviet Union were in charge of the Sahara desert, they would run out of sand in 50 years." The [Soviet Union] actually lasted 68 years, from 1922 to 1991.
The United Nations (UN)
After the previous League of Nations failed, the UN was formed in 1945 to facilitate cooperation in international law, international security, economic development, social progress, human rights, and the achieving of world peace by stopping wars between countries, and to provide a platform for dialogue.
The European Union (EU)
With the collapse of the Greek economy, and the [rapid growth of debt] in the UK, Spain and France, there are concerns that the EU might not last past 2020.
The United States of America (USA)
My own country is a federation of states, each with its own government. California's financial crisis was compared to the one in Greece. My own state of Arizona is under boycott from other states because of its recent [immigration law]. However, I think the US has managed better than the EU because it has evolved over the past 200 years.
The Organization of the Petroleum Exporting Countries [OPEC]
Technically, OPEC is not a federation of cooperating countries, but rather a cartel of competing countries that have agreed on total industry output of oil to increase individual members' profits. Note that it was a non-OPEC company, BP, that could not "control their output" in what has now become the worst oil spill in US history. OPEC was formed in 1960, and is expected to collapse sometime around 2030 when the world's oil reserves run out. Matt Savinar has a nice article on [Life After the Oil Crash].
United Federation of Planets
The [Federation] fictitiously described in the Star Trek series appears to work well, an optimistic view of what federations could become if you let them evolve long enough.
Given the mixed results with "federation", I think I will avoid using the term for storage, and stick to the original term "scale-out architecture".
Here I am, day 11 of a 17-day business trip, on my last leg of the trip this week, in Kuala Lumpur in Malaysia. I have been flooded with requests to give my take on EMC's latest re-interpretation of storage virtualization, VPLEX.
I'll leave it to my fellow IBM master inventor Barry Whyte to cover the detailed technical side-by-side comparison. Instead, I will focus on the business side of things, using Simon Sinek's Why-How-What sequence. Here is a [TED video] from Garr Reynold's post
[The importance of starting from Why].
Let's start with the problem we are trying to solve.
Problem: migration from old gear to new gear, old technology to new technology, from one vendor to another vendor, is disruptive, time-consuming and painful.
Given that IT storage is typically replaced every 3-5 years, then pretty much every company with an internal IT department has this problem, the exception being those companies that don't last that long, and those that use public cloud solutions. IT storage can be expensive, so companies would like their new purchases to be fully utilized on day 1, and be completely empty on day 1500 when the lease expires. I have spoken to clients who have spent 6-9 months planning for the replacement or removal of a storage array.
A solution to make the data migration non-disruptive would benefit the clients (make it easier for their IT staff to keep their data center modern and current) as well as the vendors (reduce the obstacle of selling and deploying new features and functions). Storage virtualization can be employed to help solve this problem. I define virtualization as "technology that makes one set of resources look and feel like a different set of resources, preferably with more desirable characteristics.". By making different storage resources, old and new, look and feel like a single type of resource, migration can be performed without disrupting applications.
Before VPLEX, here is a breakdown of each solution:
Non-disruptive tech refresh, and a unified platform to provide management and functionality across heterogeneous storage.
Non-disruptive tech refresh, and a unified platform to provide management and functionality between internal tier-1 HDS storage, and external tier-2 heterogeneous storage.
Non-disruptive tech refresh, with unified multi-pathing driver that allows host attachment of heterogeneous storage.
New in-band storage virtualization device
Add in-band storage virtualization to existing storage array
New out-of-band storage virtualization device with new "smart" SAN switches
SAN Volume Controller
HDS USP-V and USP-VM
For IBM, the motivation was clear: Protect customers existing investment in older storage arrays and introduce new IBM storage with a solution that allows both to be managed with a single set of interfaces and provide a common set of functionality, improving capacity utilization and availability. IBM SAN Volume Controller eliminated vendor lock-in, providing clients choice in multi-pathing driver, and allowing any-to-any migration and copy services. For example, IBM SVC can be used to help migrate data from an old HDS USP-V to a new HDS USP-V.
With EMC, however, the motivation appeared to protect software revenues from their PowerPath multi-pathing driver, TimeFinder and SRDF copy services. Back in 2005, when EMC Invista was first announced, these three software represented 60 percent of EMC's bottom-line profit. (Ok, I made that last part up, but you get my point! EMC charges a lot for these.)
Back in 2006, fellow blogger Chuck Hollis (EMC) suggested that SVC was just a [bump in the wire] which could not possibly improve performance of existing disk arrays. IBM showed clients that putting cache(SVC) in front of other cache(back end devices) does indeed improve performance, in the same way that multi-core processors successfully use L1/L2/L3 cache. Now, EMC is claiming their cache-based VPLEX improves performance of back-end disk. My how EMC's story has changed!
So now, EMC announces VPLEX, which sports a blend of SVC-like and Invista-like characteristics. Based on blogs, tweets and publicly available materials I found on EMC's website, I have been able to determine the following comparison table. (Of course, VPLEX is not yet generally available, so what is eventually delivered may differ.)
Scalable, 1 to 4 node-pairs
One size fits all, single pair of CPCs
SVC-like, 1 to 4 director-pairs
Works with any SAN switches or directors
Required special "smart" switches (vendor lock-in)
SVC-like, works with any SAN switches or directors
Broad selection of IBM Subsystem Device Driver (SDD) offered at no additional charge, as well as OS-native drivers Windows MPIO, AIX MPIO, Solaris MPxIO, HP-UX PV-Links, VMware MPP, Linux DM-MP, and comercial third-party driver Symantec DMP.
Limited selection, with focus on priced PowerPath driver
Invista-like, PowerPath and Windows MPIO
Read cache, and choice of fast-write or write-through cache, offering the ability to improve performance.
No cache, Split-Path architecture cracked open Fibre Channel packets in flight, delayed every IO by 20 nanoseconds, and redirected modified packets to the appropriate physical device.
SVC-like, Read and write-through cache, offering the ability to improve performance.
Space-Efficient Point-in-Time copies
SVC FlashCopy supports up to 256 space-efficient targets, copies of copies, read-only or writeable, and incremental persistent pairs.
Like Invista, No
Remote distance mirror
Choice of SVC Metro Mirror (synchronous up to 300km) and Global Mirror (asynchronous), or use the functionality of the back-end storage arrays
No native support, use functionality of back-end storage arrays, or purchase separate product called EMC RecoverPoint to cover this lack of functionality
Limited synchronous remote-distance mirror within VPLEX (up to 100km only), no native asynchronous support, use functionality of back-end storage arrays
Provides thin provisioning to devices that don't offer this natively
Like Invista, No
SVC Split-Cluster allows concurrent read/write access of data to be accessed from hosts at two different locations several miles apart
I don't think so
PLEX-Metro, similar in concept but implemented differently
Non-disruptive tech refresh
Can upgrade or replace storage arrays, SAN switches, and even the SVC nodes software AND hardware themselves, non-disruptively
Tech refresh for storage arrays, but not for Invista CPCs
Tech refresh of back end devices, and upgrade of VPLEX software, non-disruptively. Not clear if VPLEX engines themselves can be upgraded non-disruptively like the SVC.
Heterogeneous Storage Support
Broad support of over 140 different storage models from all major vendors, including all CLARiiON, Symmetrix and VMAX from EMC, and storage from many smaller startups you may not have heard of
Invista-like. VPLEX claims to support a variety of arrays from a variety of vendors, but as far as I can find, only DS8000 supported from the list of IBM devices. Fellow blogger Barry Burke (EMC) suggests [putting SVC between VPLEX and third party storage devices] to get the heterogeneous coverage most companies demand.
Back-end storage requirement
Must define quorum disks on any IBM or non-IBM back end storage array. SVC can run entirely on non-IBM storage arrays
HP SVSP-like, requires at least one EMC storage array to hold metadata
SVC 2145-CF8 model supports up to four solid-state drives (SSD) per node that can treated as managed disk to store end-user data
Invista-like. VPLEX has an internal 30GB SSD, but this is used only for operating system and logs, not for end-user data.
In-band virtualization solutions from IBM and HDS dominate the market. Being able to migrate data from old devices to new ones non-disruptively turned out to be only the [tip of the iceberg] of benefits from storage virtualization. In today's highly virtualized server environment, being able to non-disruptively migrate data comes in handy all the time. SVC is one of the best storage solutions for VMware, Hyper-V, XEN and PowerVM environments. EMC watched and learned in the shadows, taking notes of what people like about the SVC, and decided to follow IBM's time-tested leadership to provide a similar offering.
EMC re-invented the wheel, and it is round. On a scale from Invista (zero) to SVC (ten), I give EMC's new VPLEX a six.
Wrapping up my coverage of the 2013 IT Security and Storage Expo in Belgium, I noticed some interesting things in the other booths.
The EMC booth had a whiteboard so that clients could do some one-on-one collaboration. All of their cocktail waitresses were wearing sharp pin-stripe coats with matching mini-skirts.
Another booth had a "virtual graffiti wall". Using a "digital spraycan", you could write on the wall. I am not sure what connection this had with anything the company had to offer, but perhaps they also wanted to collaborate with attendees on solutions. In either case, it was very cool, and brought a lot of traffic.
(FTC Disclosure: I work for IBM. I was not paid to mention any of the other companies, their products or people on this blog post. Mentioning other companies is not to be considered an endorsement of any kind.)
There were some interesting costumes. Leila from [Aerohive] wearing a "bee costume" complete with black wings. Hans from STS in a bright orange business suit. (Orange is the national color of Belgium). Sophie from Fortinet handed out champagne. The plastic glassware were cones that snapped onto her tray, but they had no flat bottom to rest your glass down, so you had to hold it the entire time until you finished drinking it. The Homer Simpson sticker eating the Apple logo shows the Belgians have a sense of humor!
The NetApp booth had a huge banner claiming that "Data OnTap" was the #1 storage OS. Obviously Windows, AIX, Solaris and Linux aren't consider "storage Operating Systems" per se. Is NetApp claiming they outsell FreeNAS, the only other storage OS that I can think of?
While IBM and I.R.I.S-ICT easily won the "Best Looking Big Booth" award, I have to give the "Best Looking Small Booth" award to my friends at Hitachi Data Systems. Like EMC, the Hitachi team did not have any equipment on the floor, but they made use of their tiny space by having a Japanese theme, with cocktail waitresses in kimonos.
Continuing my coverage of the IT Security and Storage Expo in Brussels, Belgium, we had a nice reception Wednesday evening.
Clara handed out Ceasar Chicken salads. Joelle handed out small rolled up pieces of duck.
Ilsa is an IBM expert in System x, VMware and the PureSystems family on hand to help with the demos and any client questions. I.R.I.S.-ICT employee Ans is only in her 20's, but is recognized as one of Belgium's leading experts in System z mainframe. I used to be the lead architect for DFSMS on z/OS, so we had plenty to talk about.
Of course, the best time for the press to ask for interviews is during the reception, where everyone is relaxed and ready to speak. I am "media-trained" which allows me to speak to the press about IBM matters. I do a lot of these interviews either over the phone, or on camera.
I took a picture to capture the typical setup. Mandy on the left is asking me questions, while camera operator Lisa focuses on my body language. The trick is to spend 80 percent of the time focused on your interviewer, and then 20 percent looking into the camera for strategic pauses. If Mandy decides to use any of the footage, she will be sending me the YouTube video link!
Hans and Sophie from Veeam stopped by the IBM booth to say hello. (See 2010 Aug 27 blog post comparing Veeam to Tivoli Storage Manager). These two DJ's kept the IBM and I.R.I.S-ICT booth hopping.
Belgium is a small country, and many of the IT storage people know each other. This made for quite the party! Our group closed up the booth around 8:30pm and we went over to join their friends at Arrow and Huawei. Here is Maiva from Huawei.
The Belgium IT Security and Storage Expo was a great success!
(I am back to the USA in Portland, Oregon this week, so these posts relate to last week.)
However, that wasn't to say I didn't encounter a few challenges during my week in Belgium. The first was getting to the venue. The Belgium Expo is a large complex of buildings to the north of the city. The local IBM team suggested I go to the facility a day in advance so that I would be able to see where it was and how to get there.
I was staying in the center of town, in Place Rogier section. I had many transportation options:
Take a taxi. It was raining this week, so finding a taxi was difficult.
Take the bus. The Bus #260 goes directly from my hotel to the Belgium Expo, but only goes once an hour.
Take the metro. The metro operates frequently, and the Haysel stop is right in front of the Belgium Expo complex.
Upon arrival to the building complex, I was unsure of which building I needed to be in. Standing in front of the beautiful Building 5, I found this legend that provided the answer: Building 8. In front of Building 12 was a map that showed where Building 8 was located on the campus.
For this event, IBM joined forces with IBM Business Partner I.R.I.S-ICT to have a fabulous booth, with plenty of experts and equipment demos. As is often the case, the team had to work late into the night to get all the equipment set up, all the podiums and counters constructed, and the demos fully operational.
Apparently, I was not the only one to have troubles finding the place, so I did not feel alone. Some with cars drove around the complex several times before figuring out which parking lot to park in. Others parked at the first spot they found, and still ended up walking as much as I did.
For future reference, If you plan to attend any event at the Belgium Expo, either (a) ask for more explicit directions, and (b) plan to do lots of walking!
Here are some upcoming events related to IBM Storage!
If you sell IBM and/or Oracle solutions, please join me for IBM Oracle Virtual University 2013!
A few weeks ago, I recorded a session on IBM Storage: Overview, Positioning and How to Sell that will be available on demand starting tomorrow, February 26th, at the IBM Oracle Virtual University 2013.
It's one of 65 new sessions that will help IBM to surround Oracle applications with IBM infrastructure, services and industry solutions. Oracle software, after all, runs best on IBM hardware. Other highlights of Oracle Virtual University include a live executive State of the Alliance session with Q&A, Oracle keynote, updates by Oracle product managers, sessions on PureSystems, Selling IBM into an Oracle environment, Cloud, and much more.
There will be live technical teams on hand throughout launch day to answer your questions in real time, so I hope you can carve out 30 minutes or more on February 26th to take advantage of these available resources.
After helping launch the first Pulse back in 2008, I have sadly not been back since. Last year, I was invited to attend as a last-minute replacement for another speaker, but I was busy [having emergency surgery].
This year's [Pulse 2013] conference looks amazing. It will be held in Las Vegas, Nevada. Guest Speaker Payton Manning, NFL 4-time MVP football player, and Carrie Underwood, 6-time Grammy award winner, join IBM's Software Group executives and experts on how IBM Tivoli can help optimize your IT infrastructure.
Sadly, once again, I will not be there at Pulse. This time, I will be on the East Coast visiting clients instead, but my on-premise correspondent, Tom Rauchut, has informed me that he will be there. Hopefully, he will provide me something to write about.
Later in March, I will be in Brussels, Belgium for the Storage Expo. This is held March 20-21, at the Brussels-Expo venue. I will be presenting several topics each day, as well as visit clients in the area. This event comes on behalf of IBM Belgium in association with IBM Business Partner IRIS-ICT.
If you plan to participate in any of these events, let me know!
(What does this have to do with Storage? When IBM got back into networking in a big way, they had to decide whether to combine it with one of the existing groups, or form its own group. IBM decided to merge networking with storage, which makes sense since the primary purpose of most networks is to access or transmit information stored somewhere else.)
Last April, the Wharton School and the Institute for the Future convened a one-day [After Broadband] workshop in San Francisco, California, that brought together a group of leading technologists, entrepreneurs, academics and policymakers to explore the future of broadband over the next decade.
A lot was announced yesterday, so I decided to break it up into several separate posts. This is part 2 in my 3-part series, focusing on: Storwize V7000 Unified, LTO-6 tape, and the SmartCloud Virtual Storage Center.
The Storwize V7000 Unified is a product that consists of a 2U-high Storwize V7000 control enclosure that provides block-based access, combined with two 2U-high File Modules that provide file-based NAS protocols: CIFS, NFS, HTTPS, SCP and FTP. The problem was that when it was introduced, it was based on Storwize V7000 v6.3, so when the Storwize V7000 v6.4 features were announced last June, they did not apply to the Storwize V7000 Unified.
That is all fixed now, so the Storwize V7000 Unified now supports the full v6.4 features, including Real-time Compression for both file and block-based access to primary data, and Fibre Channel over Ethernet (FCoE) for block access.
The two File Modules are no longer limited to a single Storwize V7000 control enclosure, you can now connect to up to four control enclosures clustered together. Combined with up to nine expansion enclosures for additional disk raises the total maximum to 960 drives.
If you don't already have an Active Directory or LDAP server, the Storwize V7000 Unified now offers an embedded LDAP server, for smaller deployments that want to reduce the number of servers they need to purchase for a complete solution.
Like the [IBM XIV Gen3 storage system], both the Storwize V7000 and V7000 Unified now also support the OpenStack Nova-volume interface.
Lastly, if you have a Storwize V7000 v6.4, you can upgrade it to a Storwize V7000 Unified by simply adding the two File Modules. This can be done in the field.
IBM LTO-6 for tape libraries and drives
IBM introduces the sixth generation of Linear Tape Open (LTO-6) drives, which can be used as stand-alone IBM TS1060 drives, or in IBM tape libraries. As with previous models of LTO, the LTO-6 can read two older generations (LTO-4 and LTO-5) tape media, and can write to previous generation (LTO-5) tape media. You can buy the LTO-6 drives now, and use the older media until LTO-6 tape cartridges are available (hopefully later this year!)
My friend, Brad Johns, from Brad Johns Consulting, has a great post on this [LTO-6 Announcement]. While you expect the new drives to be faster with a denser tape media format, the key advantage to the LTO-6 is that it improves the compression algorithm, from the previous 2:1 to the new 2.5:1 compression ratio:
Thus, with the improved compression, the LTO-6 is 40 percent faster, with double the tape cartridge density. This can reduce backup times by 30 percent, increase the amount of data that sits in your automated tape libraries, and reduce the courier costs sending tapes off-site.
IBM SmartCloud Virtual Storage Center v5.1
Last year, IBM coined the phrase "Storage Hypervisor" to refer to the underlying technology in the IBM SAN Volume Controller (SVC) and Storwize V7000 disk systems.
At the IBM Edge conference last June, my colleague Mike Griese presented [SmartCloud Virtual Storage Center]. Back then, it was a pilot program (beta test), and this week, IBM announces that it will be formally available as a product.
The idea was simple: take the basic storage hypervisor, and add the necessary software to make it a complete solution.
If all of your disk is currently virtualized behind IBM SAN Volume Controller (SVC), or you want to put all of your data behind SVC, then SmartCloud Virtual Storage Center is for you. Basically, for one per-TB price, you get all of the following:
The software features of SAN Volume Controller v6.4, including FlashCopy, Metro Mirror and Global Mirror.
The full advanced features of IBM Tivoli Storage Productivity Center v5.1, including the Storage Analytics Engine that does "Right-Tiering", recommending which LUNs should be moved entirely from one disk system to another, based on policies and access patterns.
IBM Tivoli Storage FlashCopy Manager v3.2 which manages FlashCopy with full coordination with applications, including Microsoft Exchange, SQL Server, DB2, Oracle, SAP, and VMware. This ensures that the FlashCopy destination copies are clean, eliminating the need to run backout or redo logs to correct any incomplete units of work.
If this combination sounds familiar, it was based on IBM's previous attempt called [Rapid Application Storage] which combined the Storwize V7000 with Tivoli Storage Productivity Center Midrange Edition and FlashCopy Manager.
The key difference is that SmartCloud VSC does not include the SVC hardware itself, you buy this separately. If you want Real-time Compression, that is charged separately for the subset of TB of the volumes that you select for compression.
Many thanks to the 186 people who registered for yesterday's webcast "Solving the Storage Capacity Crisis -- Tools and Practices for Effective Management!" We had some excellent questions posed during the live Q&A:
Do you recommend moving to a SAN before implementing the management techniques you described, or will these tactics work just as well on direct-attached storage?
How does data center tiering differ from hierarchical storage management?
How do you recommend decisions about data priority be made when there are multiple stakeholders competing for attention?
You didn't mention deduplication. Does that have much impact on capacity management?
When outsourcing to a storage service provider, do you have any recommendations of the merits of wholesale outsourcing vs. partial outsourcing?
What are the dangers of giving end-users the ability to manage their own storage? What kind of education should be put in place?
The webcast was recorded, so in case you missed it, or just want to hear it again, the recording is now available in the [On24 archives].