Barry Whyte is a 'Master Inventor' working in the Systems Group. Now based in Auckland New Zealand, Barry is working for the IBM ATS team covering Storage Virtualization for the AP region. Previously Barry was based in IBM Hursley, UK. Barry primarly works on the IBM SAN Volume Controller and Storwize family of virtual disk systems. Barry graduated from The University of Glasgow in 1996 with a B.Sc (Hons) in Computing Science. In his 18 years at IBM he has also worked on the successful Serial Storage Architecture (SSA) and the IBM DS8000 range. Barry joined the SVC development team soon after its inception and has held many positions before taking on his long running role as performance architect. In 2015 Barry moved to New Zealand, but maintains a part-time working role for the Hursley team working as a performance consultant. Outside of work, Barry enjoys playing golf and all things to do with Rotary Engines. All posts on this blog are (c) Copyright International Business Machines 2014 - reproduction without prior approval is prohibited.
As you may have seen, today IBM announced the next product in the Storwize family, the IBM Storwize V3700. The Stowize V3700 builds on the amazing success that the Storwize V7000 has seen in the last two years- and of course SVC has had in the market for almost 10 years now. I could use the work... [Continue Reading]
As I try to get back to more regular posting, Part 3 of Configuring for Optimal Performance is getting its final polish to post hopefully next week. Meanwhile its some time since I opened this up for your questions. This is Q & A #5, so feel free to ask away. Obviously I can't discuss... [Continue Reading]
With the move to the new blog software, there is probably a bunch of you that found yourself here, not knowing what this post was going to contain - as well as my regulars that either reap the benefits of SVC every day, or know the patter , but may not know all the benefits. I liken SVC to a mobile... [Continue Reading]
Its just about year to the day since IBM announced the IBM Storwize V7000, today we've announed the next major step in the evolution of the product, and the SVC code base at its heart. The IBM Storwize V7000 Unified. This integrates IBM's Common NAS software which is used in the enterprise level... [Continue Reading]
I thought it was worth spending a few minutes describing a feature that SVC has been supporting for
just over a year now. Call it what you want, "Split Cluster", "Split I/O Group", "Hyper-swap", "Pork"
(Sorry HAM). After HDS made such a wet fish splash... [Continue Reading]
On Friday we will release SVC software version 6.4 - it used to be simple, I could just reference SVC, but of course the same software package can be installed on V7000 systems. At present V7000 Unified systems remain at 6.3 features and functions. You've probably seen the news in the press, and IBM... [Continue Reading]
Tony Pearson has posted a great set of FAQ questions that were answered during a session at last weeks IBM's 2009 Storage Symposium. For any current or prospective SVC users, its worth a read, and it got me thinking I haven't had one of my Q&A posts for a while.. So here is you chance. If its... [Continue Reading]
I find I start so many posts these days describing how busy I've been as an excuse to why my post
frequency has been lower than normal. This has to have been a new record as I spotted my last post was over a
month ago. This time however I do have a much better excuse, two weeks time off away... [Continue Reading]
Its been so difficult to keep all this to myself over the last few months, especially last month when we actually reached our goal. 1 Million real life IOPs at less than 1ms - no caching, just pure raw performance. You may, or may not have seen the IBM press release , covering the first part of... [Continue Reading]
Greetings this week from the Storage Buddhist as I do a guest spot on this blog for Barry. I'm wondering if he's a little sensitive about Nigel Poulton 's recent Infosmack jibe about how often this blog gets updated, so I'm stepping in while Bazza contemplates possible topics for his next blog... [Continue Reading]
Well, i guess I should first wish, any readers I still have left a Happy New Year. Not only are we now into 2012, but hey its February too, where did January go... must be some kind of temporal locality thing going on (private joke - sorry, all will become clear all too soon) For those of you that... [Continue Reading]
As hinted by my last post, the next release of SVC software is on its way, available in early June, along with the new optional 10Gbit iSCSI support. Since SVC, and V7000 are essentially the same thing, just packaged in different hardware vehicles, all of the software updates apply to both... [Continue Reading]
At the risk of re-gurgitating recent Storage benchmarketing scars and rumblings, its probably escaped most people that we just published another Storwize V7000 SPC-1 benchmark. Why another I hear you ask, well the first one we published was back in November when the product first GA'd.
However, we... [Continue Reading]
The interop just keeps growing. As you would expect you can today attach the new IBM Storage products behind SVC, running the latest 4.3.0 software. SVC has actually supported XIV since August, we completed the controller qualification during our last SVT cycle, and the IBM Storage teams in the US... [Continue Reading]
I thought it was time to get back to some technical content, and with recent blog posts, it clear that there is some confusion over how SVC works. In particular how the actual virtual to physical blocks are mapped, how they can be changed without application disruption, and how you get data into... [Continue Reading]