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 20 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 2007-2016 - reproduction without prior approval is prohibited.
This is a bit of an opus I'm afraid, but I've had my hands tied for so long in what I could / couldn't say so think of this as a catch up for my last 6 months of sporadic posting! Please do try to make it to the end, I'm covering a lot here! In my last post I covered whats coming with SVC 5.1 at a... [Continue Reading]
These days I'm spending more and more of my time with customers visiting Hursley wanting to hear
about our smart planet initiatives, how we can help to make their infrastructure dynamic and of course
most of my involvement in this is around presenting how and where SVC and storage... [Continue Reading]
The Serial Storage Architecture Years - 1990-1998 Its been a crazier than ever year. All will become clear soon. But one of the things I wanted to discuss with you all is just what kind of history comes with the team of ~150 storage people that I work with on a daily basis. Of course there are a... [Continue Reading]
I know its been a long time since I posted the first to parts in my "optimal performance" series, and I've been promising parts 3 and 4 for some time, but they are more or less written - well the basic information has been distilled into a presentation... The world exclusive for... [Continue Reading]
So after all the EMC hype, and all the claims that the DS8000 was "pushing up daises" it seems
that IBM have managed to announce the GA of ship our sub-lun hot-spot management, aka Easy Tier before EMC
have shipped their FAST function. Now, before you all jump and say EMC have been... [Continue Reading]
2000-2007 The "Virtual" Storage - SAN Virtualization Appliance Years First of all thanks again for all the feedback regarding this series of posts, great that people are enjoying a bit of a history lesson, or even a reminder into your own histories!
So where was I... The Hursley team... [Continue Reading]
Last week I had a couple of meetings in Manchester (UK) with some SVC and V7000 end users, as well as the chance to pop in and say hi to our team in the IBM Manchester labs. About two days before heading up the M6 I was asked if I'd like to join in a roundtable session with UKFast - discussing the... [Continue Reading]
I'm busy crafting part 2 of my Configuring for Optimal Performance series, meanwhile check out part two of my interview with Hal Jennings hosting IBM's blog talk radio channel , click on the image below :
For the last few years we have often talked about 'flexible hardware' options for SVC. While we have offered the internal SAS HBA and SSD attachment within the nodes, and a 10Gbit iSCSI/FCoE capable upgrade, we've never quite made it to true flexible hardware, with respect to Fibre... [Continue Reading]
Over two weeks ago, we released v7.5.0 of the recently re-branded 'Spectrum Virtualize' software, that software that we all know as the code running in both SVC and Storwize products. The major new feature in 7.5.0 is HyperSwap - which you can think of as a new and improved Stretched Cluster... [Continue Reading]
While catching up on some old and new posts out here I came across an interesting article from Chris Mellor discussing a report about various PCIe card benchmarks performed by the Swiss National Computing Centre (CSCS).
I was going to reply to his post but as I started typing realised I had a... [Continue Reading]
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]
Looking back through my posts its been some months since I last opened the floor to you all, so here is you chance, a free floor. Ask anything you like, about SVC of course, but if I don't know I'm sure I know someone that will. Recently I've heard some quite elaborate FUD from the usual suspects,... [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]
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. I... [Continue Reading]