Barry Whyte is a 'Master Inventor' working in the Systems & Technology Group 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 current role as performance architect. 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.
While googling I spotted an interesting topic from Chris, discussing the application of SATA drives in the enterprise. Quite rightly for years most vendors have been telling their customers that SATA is no replacement for SCSI or Fibre-Channel enterprise class disks. I don't know enough about the... [Continue Reading]
Less than one week into my blogging career, why not open a huge can of worms and let the 'fishermen' fight over the big fat juicy ones... I changed the title of this post several times before settling on the phrase "what do I mean" - this way I'm not dictating anything to anyone other than what I... [Continue Reading]
Cornerstone #5 The potential to increase system performance While this topic directly corresponds with ‘Cornerstone #5’ it does also contribute #2 Simplification of storage management and #4 Increased storage utilization Pooling and Striping Most enterprise level controllers, the likes of DS8000,... [Continue Reading]
This morning one of my colleagues in my office bay started a discussion about the fine line between divulging useful technical information on this blog-o-sphere while maintaining the confidentiality of technical information, product plans and general intellectual property of IBM. I explained to him... [Continue Reading]
Last week was a long one. The main SVC test-lab in Hursley suffers from the same problems that haunts most machine rooms - lack of power and not enough cooling. Thats not to say that we don't have a lot of both, just that as the support and test requirements have increased over the last five years,... [Continue Reading]
Just a quick post to let those interested know that the [SVC Best Practices and Performance Guidelines] Redbook has just been made publicly available on the IBM Redbooks website . Many thanks to Jon Tate and his team of able (and pestering) technical writers for all their hard work. Jon and I spent... [Continue Reading]
I'd mentioned we (the SVC performance team) have a few bits of fine tuning and investigations to perform for the next (4.3.0) release of SVC. This is the part of my job that I enjoy the most, getting the latest builds from development and putting them through their paces, drilling into the running... [Continue Reading]
As we approach SVC's 6th birthday its interesting to see the rest of the industry starting to catch up and realise not only that a modular commodity storage controller is the way forward, but that also clustering of said modular controllers has many benefits. We all await todays announcement of HDS... [Continue Reading]
Happy New Year to all. As you may know, or have seen the UK is currently under the grip of winter. A few inches of snow and the country comes to a stand-still. Maybe I'm getting old an cynical (some may say no maybe about it!) but I do remember walking to school in drifts of over 2 foot back in... [Continue Reading]
Two posts in one week. Doing well. I set one of my resolutions this year to post at least once a week – hence my new numbering scheme. Maybe I’ll use the fact that 2010-2.2 and further double posts count for the odd week I may miss :)
Benchmarketing. It’s a dodgy term, and even dodgier... [Continue Reading]
You may have already seen that SVC has yet again set a new world record benchmark when it comes to the Storage Performance Council's SPC-1 benchmark.
The initial planning called for a full eight node test - as we normally do, and the manufacturing requests were put in to setup the 4000+ HDD... [Continue Reading]
There has been a lot of twitter banter, and blog posts about Tiering. Netapp claiming you don't need
to tier, EMC and IBM saying tiering is important and 3Par Farley going so far as to say that Netapp
can't do tiering easily, hence their response, and discussion of PAM being the way to resolve.... [Continue Reading]
I just wanted to post a quick thanks to everyone that took the time out of their day jobs to come to Hursley yesterday for the User Group sessions. I'm hoping that everyone got as much as we did out of the day and it was great to see so many (not just UK) visitors. I've already started pushing... [Continue Reading]
It was nice to have a day back in the office today, the last couple of weeks have gone by in somewhat of a blurr, with several offsite customer visits, several more visiting Hursley, my vLab sesson at IP expo in London , then last week in Germany at the SVC User Group in Mainz and finally all... [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]