I am now fully a week behind in my coverage of my romp through Australia and New Zealand. Last week was "week 2" of the "Tony and Anna" show! This time we were in Auckland, New Zealand. Anna Wells is from New Zealand originally, so it was good for her to be back in her home country.
New Zealand shares a lot of traits with Australia, including low unemployment and a healthy economy. Employees feel secure enough in their jobs to invest in real estate, get married and start families. School teachers are well-regarded in society, earning six-figure incomes. Retail stores were filled with shoppers spending [disposable and discretionary income]. What a refreshing difference from the United States! The level of optimism made my skin tingle. I had to file a lot of paperwork for all the work permits and visas for this trip, so I hate to think what it would take to emigrate to either country.
(Of course, the grass always appears greener on the other side. Not everything is perfect in New Zealand. I saw warning signs for toxic sea slugs in their beaches, sales advertising for [Brolly Sheets], and the south island of New Zealand suffered a magnitute 7.1 earthquake near Christchurch on the day I arrived to Auckland on the north island. Over 100,000 homes were damaged, but nobody died, and the entire country rallied support to help out those affected.)
The Storage Optimisation Breakfast at this, the fifth of seven cities, went smoothly. The New Zealand client case study she had planned to show was in the middle of an [RFP], so instead she covered [Edith Cowan University] and [Bunnings Warehouse] from Australia as examples of success stories.
Our next speaker was Glen Mitchell, an IT architect in the Operational Integration, Technology & Shared Services of Telecom NZ. The Telecom NZ is New Zealand's phone company, recently split up into separate business units, similar to what the US government did to AT&T during the 1974 [Bell System Divestiture].
The change forced Telecom NZ to be more financially responsible. Before, they were using an all-EMC disk environment, managed by HP Enterprise Services (formerly known as EDS). The EMC gear worked as expected and Telecom NZ is happy with EMC as a vendor, but they were uncomfortable with vendor lock-in. Some firmware upgrades on their EMC boxes often forced them to take outages on hundreds of connected servers to install Powerpath updates. After an EMC disk array went off its four-year prepaid warranty, it took another FOUR YEARS to get all 180 servers migrated to another disk array. Keeping a disk array after warranty expires can cost as much as $450K NZD per year, per disk array, in maintenance fees! Ouch! This served as a strong motivator to find a way to migrate data from one disk array to another in a more smooth and timely manner.
The new direction was a dual-vendor environment, keeping some of the midrange EMC gear, and getting new IBM high-end DS8700 gear, resulting in a drastically lower TCO. To make the transition as smooth as possible, Telecom NZ employed IBM SAN Volume Controller (SVC) to virtualize their entire environment, both EMC and IBM happily being part of shared disk pools. They had originally planned to migrate their entire server environment over in 12 months, but in the first six weeks, they are already at 20 percent, ahead of schedule!
The SAN Volume Controllers will also allow Telecom NZ have Business Continuity/Disaster Recovery protection in a consistent manner across both EMC and IBM equipment between their two main data centers in Auckland and Hamilton.
By deploying IBM DS8700 and SAN Volume Controller, Telecom NZ was able to reduce costs, manage risk, and improve service delivery!
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Wrapping up my week on All-Flash arrays, I thought I would cover some of the Enterprise Reliability features of the IBM FlashSystem.
On Monday, [IBM FlashSystem versus EMC XtremeIO all-Flash Arrays], I discussed some of the features of the IBM FlashSystem that differentiate it from EMC's ExtremeIO and other all-Flash arrays. On Tuesday, [IBM 2013 Storage Announcements for November 19] included discussion of the all-Flash model of the IBM System Storage DS8870 disk system.
Just as light bulbs burn out eventually after repeatedly being turned on and off, Flash does not last forever either.
A set of transistors can represent a single bit of informaiton (Single-level cell, or SLC for short), or multiple bits (Multi-level Cell, MLC). MLC typically refers to two bits, with a new "Triple-level cell" or TLC technology, able to store three bits per set of transistors.
SLC is faster and can endure more "Program-erase" write cycles, but MLC is less expensive to manufacture and therefore used in most consumer products, like digital cameras, smart phones, music players and USB memory sticks. To learn more on this, see this 6-page IBM whitepaper on [Comparison of NAND Flash Technologies Used in Solid-State Storage].
In between, "Enterprise MLC" (or eMLC for short) refers specifically to a different grade of chips IBM gets from the flash manufacturer. eMLC chips use a similar MLC bit arrangement, but are typically selected from higher bins, and most importantly have much longer program-erase cycle times which yield greater chip endurance, at the expense of long data retention when power is off (but seriously, when is anything off for very long in a data center?)
As a result, eMLC has 10x the endurance of regalar MLC, approaching parity with SLC at half the cost!
In the IBM FlashSystem, DRAM cache is used to buffer the writes first, then written out to the Flash. This helps to further improve the endurance.
For enterprise reliability, each Flash chip on the IBM FlashSystem has Error Correcting Codes (ECC), and then each set of 10 chips is placed in a 9+P RAID-5 configuration.
The chips are sub-divided into 16 planes. In the event a cell fails, the data for that plane can be reconstructed from parity, and written to spare space on the other planes of that same chip set. That plane is then reformated as an 8+P RAID-5, bypassing the failed plane.
In this manner, a cell failure only results in losing a small portion of one chip. If the same plane fails another failure on another chip, it will drop down to 7+P, 6+P, 5+P, and finally 4+P. This is known as "Variable Stripe RAID" or VSR for short.
IBM FlashSystem can survive over 1,000 such cell failures without an outage. By comparison, a single cell failure on an SSD often marks the entire drive as a failure.
But wait, there's more. Why stop at just RAID-5 across 10 chips. The chips are organized into modules, and IBM FlashSystem can perform RAID-5 across modules, in a 10+P+S RAID-5 configuration. This is referred to as "Two dimensional RAID" or 2D-RAID for short.
Even if you lost an entire module, the system will automatically rebuild on the spare module, and you can replace the bad one non-disruptively.
Many use cases for all-Flash arrays do not require such high levels of Enterprise reliability. Several of the all-Flash competitors have adopted a "des
The idea is to assume that the data stored on them is just a copy from some other storage media. In the event of a Flash failure, it can easily be restored from a mirrored copy or backup.
For the IBM FlashSystem, The newer 800 series are based on eMLC, ideal for the majority of business applications, databases and virtual machine images placed on all-Flash arrays. The older 700 series are based on more expensive SLC, designed specifically for sustained write-intensive workloads.
Within each series, the "tens" models (710, 810) offer RAID-0 striping across ECC and VSR protected modules. For higher levels of availability, the "twenties" models (720, 820) offer ECC, VSR and 2D-RAID protection.
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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 andm
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:
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.Read More]
Normally, IBM only makes announcements on Tuesdays, but today, Friday, IBM announces that it acquired Diligent Technologies. What? I got a lot ofquestions about this, so I thought I would start with this...
When I posted in January that[IBM Acquires XIV],fellow EMC blogger Mark Twomey of StorageZilla fame, sent me a comment:
"Ah now Tony I wasn't poking fun. Indeed I find it fascinating that Moshe who's been sitting out on the fringes for years having been banished for being an obstructionist to EMC entering the mid-market is now back.
As you might have guessed, I am privy to a lot of stuff going on behind the scenes at IBM that I can't talk about in this blog, and all these rumors in the blogosphere about IBM acquisition of Diligent was a topic I couldn't officially recognize, defend or deny, until official IBM announcements were made.
In his latest post, Mark wonders about[the last Tape and Mainframe sales person on earth]. He recounts my interaction with fellow HDS blogger Hu Yoshia about the energy benefits ofVirtual Tape Libraries. Knowing that we were going to announcement IBM's acquisition of Diligent soon, I thoughtthis would be a worthy exchange, driving up the sales of Diligent boxes (whether you buy them from IBM or HDS).Diligent already had reselling arrangements with HDS, and IBM plans to continue thosearrangements going forward with HDS. As I have explained before in my post [Supermarketsand Specialty Shops], IBM and HDS cater to different customers, so if a customer who wants the best technologyfrom a specialty shop, they can buy IBM Diligent products from HDS, but if they want one-stop shopping, they can buyIBM Diligent directly from IBM or its other IBM Business Partners.
(Perhaps a more tricky situation is that Diligent also had an arrangement with Sun Microsystems, which competesdirectly against IBM as another IT supermarket vendor, but I have not heard how IBM has decided to handle thisgoing forward.)
For more on this intricate mess of interconnected companies, alliances and partnerships, read Dave Raffo's article[Data dedupe dance cardfilling up] over at Storage Soup.
So, let's tackle the first question:
While TSM does a good job of "deduplicating" at the client first, backing up only changed data, Scott feels database and email repositories must be backed up entirely each time, which is what happens in many other backup software products. Some clients might have 80 percent database/email and only 20 percent files, while others might have less than 20 percent database/email and 80 percent files, so this might influence whether deduplication will have small or big benefit.If TSM has to backup the entire database, even though little has changed since the last backup, that is where deduplication on a virtual tape library can come in handy. For IBM DB2 and Oracle databases, IBM TSM application-aware Tivoli Data Protection module interface backs up only changed data, not the entire file. Thanks to IBM's FilesX acquisition-- (also coincidently from Israel) --IBM can extend this support now to SQL Server databases as well.However, to be fair, Scott is partly correct, TSM does backup some database and email repositories in their entirety, which is why it is a good idea to have BOTH an IBM virtual tape library with deduplication and Tivoli Storage Manager to handle all cases. This brings us to the next question:
Jon Toigo from DrunkenData asks[Did IBM Do Due Diligence Before Making Diligent Acquisition a Done Deal?] which is probably always a valid question. Unlike XIV, I wasn't part of the Diligent acquisition team, so I can't provide first hand account of the process. I am told that the IBM team did all the right things to make sure everything is going to turn out right.Sadly, many companies that make acquisitions in the IT industry fail to make them work. Fortunately, IBM is one of the few companies that has a great success record, with over 60 acquisitions in the past six years.In the Xconomy forum, Wade Rousch writes[IBM and the Art of Acquisitions]and gives some insight why IBM is different. Jon did not understand why Cindy Grossman, IBM VP of tape and archive solutions, ran the analyst conference call for this announcement, which brings me to the next question:
Some might remember that IBM already has deduplication in its IBM N series products, called Advanced Single InstanceStorage, or A-SIS. Here is an[IBM System Storage N Series A-SIS Deduplication Deployment and Implementation Guide. This brings up the fourth question:
As with any acquisition, there will be some changes. The 100 folks from Diligent will get to learn the IBM wayof doing things. This brings me to our fifth and final question:
That's all for now, I'm off to Chicago, Illinois tomorrow!
technorati tags: IBM, Diligent, acquisition, LOST, EMC, Mark Twomey, Moshe Yanai, Pam West, StorageZilla, HDS, Hu Yoshida, Sun Microsystems, virtual, real, tape library, VTL, SATA, LTO, LTO-4, TS3500, Scott Waterhouse, information infrastructure, email, database, backup, archive, Oracle, DB2, SQL Server, FilesX, SAN, LAN, IP, LAN-free, TSM, Tivoli Storage Manager, XIV, Nextra, A-SIS, Chicago, deduplication, Dave Raffo, dedupe[Read More]
Wrapping up this week's theme on the future, fellow blogger David Spark has a great post on his SparkMinute blog titled [20 Brilliant Minds on the future of Hyperconnectivity].
(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.
At the event, David interviewed 20 people for 10 minutes, and the videos are now available online. Here is one I particularly liked, [David interviewing Bran Ferren of Applied Minds] on Vimeo.
Continuing my series on building a Desktop computer for a kindergarten class, I look at three other Linux systems mentioned in the article [Top 6 Linux Distributions for Children (Ages 2 and Up)].
(This series started with my post [Kindergarten desktop - The Challenge]. I have a 512MB RAM system with 40GB disk drive that I will install Linux and educational software for a class full of kindergarten children.
First, I re-partitioned the 40GB hard drive as follows. On the extended partition, sda5 will hold my system utilities, like Clonezilla and SystemRescue, and sda6 is my swap space. This gives me three primary partitions to install three flavors of Linux to try out.
The first was [LinuxKidX], which actually started out as a Portuguese-language effort in Brazil. It was then translated to the English language to extend its reach. It is based on the KDE desktop familiar to users of OpenSUSE Linux.
Many of the education software were similar or the same as those from Edubuntu I mentioned in my last post. However, not everything was translated, and unless you are able to read Portuguese, you may not want this one.
Next, I wanted to look at [Qimo for Kids], but first I had to look for the distribution, as the mirrors listed seemed to be unavailable. I was able to find an qimo
Unlike Edubuntu, Qimo fits on a CD-ROM for older PCs that may not have DVD drives. Based on lightweight XFCE desktop, the LiveCD runs comfortably in 512MB, with a kid-friendly app launcher at the bottom of the screen. However, Qimo 2.0 is based on Ubuntu 10.04 (Lucid Lynx) LTS, with long term support expiring this May 2013. The Firefox 3.6.3 was too old to run Gmail.
Why hasn't Qimo been enhanced since 2010? It looks like you can just install the packages qimo-session and qimo-wallpaper on newer levels of Ubuntu.
Third, I tried Foresight Linux for Kids 1.0 release. The most recent Foresight is 2.5.3, but Linux for Kids is still at the 1.0 level. The "installer" was very outdated, so the website suggested following the [power-user install HOWTO].
The HOWTO can be a bit intimidating, but I was able to install just fine in 512MB of RAM. Foresight detected I had pre-configured a swap space, and used that to help finish the install process.
Like the others, it had many of the same educational software as before. A key difference is the [Conary package management]. Most systems use either Debian (DEB) or Redhat Package Manager (RPM), but this one is different, and the use of Conary may reduce the number of software applications available.
So what have I learned from these?
If you have had any experience with any of these three distros, please comment below.
Continuing my coverage of the [IBM Storage Innovation Executive Summit], that occurred May 9 in New York City, this is my sixth in a series of blog posts on this event.
During the break, I talked with some of the other bloggers at this event. From left to right: Stephen Foskett [Pack Rat] blog, Devang Panchigar [StorageNerve], and yours truly, Tony Pearson. (Picture courtesy of Stephen Foskett)
This was by far the most entertaining section of the day! Hand-held devices allowed the audience to vote which answers they liked best.
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.
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.
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.
Continuing my coverage of the IT Security and Storage Expo in Brussels, Belgium, we had some great storage solutions on display at the IBM and I.R.I.S-ICT booth.
Here my IBM colleague Tom Provost is showing the front of the "Smarter Office" solution. The second photo gives the view from behind. While I always explained the solution from the front of the box, many of the more technical attendees at this conference wanted to inspect the ports in the back.
This sound-isolated 11U solution combines the following:
In this next example, the IBM team combined a BladeCenter S chassis that can hold six blade servers, with a Storwize V7000 Unified which offers FCP, iSCSI, FCoE, NFS, CIFS, HTTPS, SCP and FTP block and file protocols.
If those configurations are too small for your needs, consider the Flex System chassis or full PureFlex system frame. The rack-mountable 10U chassis can hold the Flex System V7000 and 10 compute notes. The PureFlex frame can hold up to four of these chasses.
IBM and I.R.I.S-ICT also had an IBM XIV Gen3 and a TS3500 Tape library on display.
technorati tags: IBM, I.R.I.S.-ICT, Belgium, Storage, Expo, Tom Provost, SFF, VMware, Hyper-V, Linux KVM, RDX, Veeam, Juniper Networks, LCM, , FCP, iSCSI, FCoE, NFS, CIFS, HTTPS, SCP, FTP, Flex System, PureFlex, PureSystems, XIV Gen3, TS3500, tape library
We have some exciting webcasts in the upcoming weeks!
I hope you can find time in your busy schedule to participate in one or both of these webcasts.