Tony Pearson is a Master Inventor and Senior IT Architect for the IBM Storage product line at the
IBM Systems Client Experience Center in Tucson Arizona, and featured contributor
to IBM's developerWorks. In 2016, Tony celebrates his 30th year anniversary with IBM Storage. He is
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.
(Short URL for this blog: ibm.co/Pearson )
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The old adage applies "You can't please everyone. Presidents can't. Prostitutes can't. Nobody can." I am reminded of that as I fielded a variety of interesting comments and emails about, of all things, my choice of order of things in recent blog posts.
Certainly, there are times when the order of things matters greatly. In my now-infamous blog post [Sock Sock Shoe Shoe], I use a scene from a popular 1970's television show to explain why compression should be done before encryption.
In my case, I put things in the order that I felt made sense to me, but not everyone agrees. Here are three recent examples:
In my blog post [Two IBMers Earn Their Retirement], I congratulated two of my colleagues on their retirement. Since their retirement happened on the same day, I decided to mention Mark Doumas first, and Jim Rymarczyk second.
However, one of my readers, who I will assume is a member of the unofficial "Jim Rymarczyk fan club", felt that I should have listed Jim first, as Jim served IBM for 44 years, and Mark only 32 years.
Really? I realize that movie stars insist on having their name listed first on the poster, but neither of these guys would be confused with George Clooney!
So, to Jim and all his fans out there, I assure you I did not mean this as a slight in any way. I have updated the post to indicate that the ordering was strictly alphabetical by last name.
In my blog post [IBM Announcements for February 2012], I presented tape products first, and disk second. Normally, I cover them alphabetically, disk first, then tape. However, I was asked to promote tape this year in preparation for the upcoming 60th anniversary of tape, so I mentioned the tape announcements first, and the disk second.
The feedback from the XIV community was swift. Many felt that I [buried the lede] in not mentioning the XIV Gen3 SSD caching first.
(Note: For those not familiar with the phrase used in journalism, 'burying the lede' refers to the failure to mention the most interesting or attention grabbing elements of a story in the first paragraph. In American news journalism, it is spelled "lede" and elsewhere it is spelled "lead". Major US dictionaries apparently accept both spellings for this phrase.)
Technically, my lead paragraph stated clearly that: "This week we have announcements for both disk and tape, but since 2012 is the 60th Diamond Anniversary for tape, I will start with tape systems first."
So, while I don't claim to be a journalist by any means, I think the lead paragraph accurately reflected that I would talk about both disk and tape products in the rest of the blog post, and if a reader didn't care to learn more about tape could bypass those sections and go directly to the section on disk instead.
I have had my head handed to me on a platter so many times here at IBM that I am considering installing a zipper around my neck. My friends in XIV land insisted that I write a secondary post about XIV Gen3 SSD caching that had no mention of tape whatsoever. One suggestion was to compare and contrast XIV Gen3 SSD caching with EMC's announcement for VFCache. The result was my blog post [IBM XIV Gen3 SSD Caching versus EMC VFCache].
What could go wrong with an apples-to-orange comparison of two different storage products sprinkled with a small amount of FUD against a major competitor?
I had two complaints on this one. First, is the order of products in my side-by-side table of comparisons. I put EMC VFCache in the left column, and IBM XIV Gen3 SSD caching in the right. I meant nothing sinister by this. Alphabetically, EMC comes before IBM, and VFCache comes before XIV. Chronologically, EMC's announcement came out on Monday, and IBM's announcement came out the following day.
(Note: The term [sinster] comes from the Latin word sinistra meaning "left hand". In the Middle Ages it was believed that when a person was writing with their left hand they were possessed by the Devil. Left-handed people were therefore considered to be evil. My poor mother was born left-handed and was forced as a child to write with her right hand to be accepted by society.)
Apparently, an unwritten convention within IBM is that comparison tables always have the newer product on the left column, followed by one or more older products to the right, or the IBM product on the left column, with one or more competitive alternatives to the right.
The second complaint came from a reader in the comments section: "... I think [what] you're doing is trying to ride EMC's release for your own marketing, did you really need to? XIV is an excellent array; adding SSD Cache to the Gen3 takes it further, Moshe would be fuming (which I think is a good thing), can you just stick to that and not ride someone else's wave?"
Both announcements relate to reducing latency of read IOPS through the use of Solid State Drives. That both companies would announce these were no surprise to any employee at either company, as both IBM and EMC have been talking about their intent to do so last year. IBM's announcement of XIV SSD Gen3 caching was certainly not in response to EMC's VFCache announcement, and I doubt EMC rushed out their VFCache announcement the day before as a pre-emptive strike against IBM's announcement of the XIV Gen3 SSD Caching feature.
(Note: I don't know her personally, but she has thousands of followers!)
There you have it. I will gladly fix false or misleading information, but I am not going to re-arrange the order of things just to please some readers, only to have other readers complain that they liked it better in the original order. As always, feel free to comment on any of this in the section below.
Continuing my post-week coverage of the [Data Center 2010 conference], Thursday morning had some interesting sessions for those that did not leave town last night.
Interactive Session Results
In addition to the [Profile of Data Center 2010] that identifies the demographics of this year's registrants, the morning started with highlights of the interactive polls during the week.
External or Heterogeneous Storage Virtualization
The analyst presented his views on the overall External/Heterogeneous Storage Virtualization marketplace. He started with the key selling points.
Avoid vendor lock-in. Unlike the IBM SAN Volume Controller, many of the other storage virtualization products result in vendor lock-in.
Leverage existing back-end capacity. Limited to what back-end storage devices are supported.
Simplify and unify management of storage. Yes, mostly.
Lower storage costs. Unlike the IBM SAN Volume Controller, many using other storage virtualization discover an increase in total storage costs.
Migration tools. Yes, as advertised.
Consolidation/Transition. Yes, over time.
Better functionality. Potentially.
Shortly after several vendors started selling external/heterogeneous storage virtualization solutions, either as software or pre-installed appliances, major storage vendors that were caught with their pants down immediately started calling everything internally as also "storage virtualization" to buy some time and increase confusion.
While the analyst agreed that storage virtualization simplifies the view of storage from the host server side, it can complicate the management of storage on the storage end. This often comes up at the Tucson Briefing Center. I explain this as the difference between manual and automatic transmission cars. My father was a car mechanic, and since he is the sole driver and sole mechanic, he prefers manual transmission cars, easier to work on. However, rental car companies, such as Hertz or Avis, prefer automatic transmission cars. This might require more skills on behalf of their mechanics, but greatly simplifies the experience for those driving.
The analyst offered his views on specific use cases:
Data Migration. The analyst feels that external virtualization serves as one of the best tools for data migration. But what about tech refresh of the storage virtualization devices themselves? Unlike IBM SAN Volume Controller, which allows non-disruptive upgrades of the nodes themselves, some of the other solutions might make such upgrades difficult.
Consolidation/Transition. External virtualization can also be helpful, depending on how aggressive the schedule for consolidation/transition is performed.
Improved Functionality/Usability. IBM SAN Volume Controller is a good example, an unexpected benefit. Features like thin provisioning, automated storage tiering, and so on, can be added to existing storage equipment.
The analyst mentioned that there were different types of solutions. The first category were those that support both internal storage and external storage virtualization, like the HDS USP-V or IBM Storwize V7000. He indicated that roughly 40 percent of HDS USP-V are licensed for virtualization. The second category were those that support external virtualization only, such as IBM SAN Volume Controller, HP Lefthand and SVSP, and so on. The third category were software-only Virtual Guest images that could provide storage virtualization capabilities.
The analyst mentioned EMC's failed product Invista, which sold less than 500 units over the past five years. The low penetration for external virtualization, estimated between 2-5 percent, could be explained from the bad taste that left in everyone considering their options. However, the analyst predicts that by 2015, external virtualization will reach double digit marketshare.
Having a feel for the demographics of the registrants, and specific interactive polling in each meeting, provides a great view on who is interested in what topic, and some insight into their fears and motivations.
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.
Sunday I was able to take the Ferry boat to Devonport, and climb to the top of Mt Victoria, which is only 283 feet above sea level, but still affords spectacular views of Auckland from across the harbour. My hotel, the Auckland Heritage, as well as the IBM building, is about a block or two away from the Sky Tower.
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.)
I took this photo of a seagull walking along Cheltenham Beach. I thought it might make for a nice wallpaper for my phone or laptop.
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.
Remember those trees shown in the movie trilogy "Lord of the Rings"? The trees here in New Zealand are amazing! I'm not an arborist, but I was told this one shown here is a [Morton Bay Fig Tree]. Some of the oldest trees in the world live in New Zealand.
By deploying IBM DS8700 and SAN Volume Controller, Telecom NZ was able to reduce costs, manage risk, and improve service delivery!
In keeping with the spirit to be a more kinder, gentler 2011, I decided last week to refrain from being the rain on someone else's parade that occurs immediately before, during or after a competitor's announcement or annual conference, and let EMC have their few moments in the spotlight last week. This of course allows me more time to learn about the announcements and reflect on marketplace reactions. Here's a quick look at the [EMC Press Release]:
A new VNXe disk system
Of the 41 new storage technologies and products EMC announced last week, the VNXe is EMC's "me-too" product to compete against other low-end disk systems like the IBM System Storage DS3524 and N3000 series. It looks truly new, developed organically from the ground up, with a new architecture, new OS. It comes in either the 2U-high VNXe3100 or the 3U-high VNXe3300. These employ 3.5-inch SAS drives to provide Ethernet-based NFS, CIFS and iSCSI host attachment. The $10K USD price tag appears to be for the hardware only. As is typical for EMC, they charge software features in bundles or "suites", so the actual TCO will be much higher. I have not seen any announcements whether Dell plans to resell either the VNXe nor the VNX models, now that they have acquired Compellent.
A new VNX disk system
Despite having a similar name as the VNXe, the VNX appears to be a re-hash of the Celerra/CLARiiON mess that EMC has been selling already, based on the old FLARE and DART operating systems of these older disk systems. This scales from 75 to 1000 SAS drives. While EMC calls the VNX "unified", it currently is only available in block-only and file-only models, with a future promise from EMC that they will offer a combined block-and-file version sometime in the future. EMC claims that the VNX will be faster than the predecessors, so hopefully that means EMC has joined the rest of the planet and will publish SPC-1 and SPC-2 benchmarks to back up that claim. They can compare against the SPC-1 benchmarks that our friends at NetApp ran against EMC CLARiiON.
New software for the VMAX
A long time ago, EMC announced they would provide non-disruptive automated tiering. Their first delivery "FAST V1" handled entire LUNs at a time. EMC now has finally "FAST VP" which we expected was going to be called "FAST V2", which provides sub-LUN automated tiering between Solid-state and spinning disk drives.. Meanwhile, IBM has been delivering "Easy Tier" on the IBM System Storage DS8000 series, SAN Volume Controller, and Storwize V7000 disk systems.
Data Domain Archiver
Competing against IBM, HP and Oracle in the tape arena, EMC's latest addition to the Data Domain family is designed for the long-term retention of backups? Archives of backups? Backups are short-lived, protecting against the unexpected loss from hardware failure or data corruption. Keeping backups as "archives" is generally a bad mistake, as it makes it hard to e-Discover the data you need when you need it, and may not have the appropriate hardware tor restore these old backups when you do find them.
I will have to dig deeper into all of these different technologies in separate posts in the future.
It's that time again to think about [New Year's resolutions]! This fine tradition dates back 4000 years
to early Babylonians, with the most popular resolution back then was to return borrowed
Resolutions can be to work toward a specific goal, start doing something, or change your
habits to do something more often, or less often, than last year. Jim Collins from
37Signals suggests a [Stop Doing List]. Colin Beavan (aka [No Impact Man]) took this idea to the
extreme, giving up a year of electricity, coffee and toilet paper, and a bunch of other
things, in an effort to minimize his environmental impact.
This one was easy. Nearly all of my friends and family live in Tucson, so spending more
time merely involves spending less time out of town. With the economic meltdown of
2008, IBM set down strict travel restrictions, so I only traveled 11 weeks in 2009.
Enjoy Life More
I have mixed feelings on this one. The four hardest hit areas of the current economic
recession were southern Florida, southern Michigan, southern California and southern
Arizona. Last year, I had friends that lost their job, their home, their business, or
their battle with cancer. Trying to enjoy life while your friends are walking around
like zombies after nuclear winter just doesn't feel right.
Learn Something New
I was able to keep this one, in an unexpected way. Shortly after making this
resolution, I was asked to teach young kids the "C" programming language so they could
program LEGO Mindstorms robots. While I already know "C" in general, I had to learn to
build the robots and program the interface for the robot "brick" in order to teach
others. Sometimes, the best way to learn something new, is to offer to teach it to
others. This was a deeply rewarding way to give back to the community.
Make Tucson a better place, and enrich the lives of its residents
In addition to helping teach kids to build robots, I spent hundreds of hours and
thousands of dollars to support local Tucson organizations this year. Did it help? It
is hard to say. For example, you can spend an entire day sorting cans for the community
food bank, only to learn that this will all be consumed in a matter of days. At least I
will be paying less taxes!
Get better organized
This has been an ongoing struggle, but I made progress in 2008 and 2009. Last year, I
purchased a T-mobile G1 smart phone with Google and I have been using this as my
organization tool. It syncs up with my Gmail, Google Calendar, Google Contacts,
Remember the Milk, Delicious, and other sites I use. It certainly works better for me
than my past attempt using a [Hipster PDA].
Should people make their resolutions public? Derek Sivers cites research indicating
that [announcing your plans makes you less
motivated] to complete them. Given the long waits we saw between when storage
vendors like EMC announce some new feature to when it is actually delivered, there might
be a lot of truth to that. So, this year, I will do things differently and NOT make
public any New Year's resolutions for 2010.