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.
The port to local node communication is used for mirroring write cache as well as metadata exchange between nodes and is critical to the stable operation of the cluster. The DH8 nodes with their 8-port and 12-port configurations provide an opportunity to isolate the port to local node traffic from... [Continue Reading]
One part of the celebration of 50 years of IBM at the Hursley site involves this great CBR supplement that covers those 50 years across all software, and hardware developments, and essentially innovation in the IT industry that have come out of Hursley. The lab is less than 5 miles from Winchester... [Continue Reading]
Another couple of weeks fly by, and far too many evenings have been spent on conference calls and the like - such is life when many of your close colleagues and executive team are six to eight hours behind you. Anyway, thats my excuse for not having posted much recently. I've been following the... [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]
Welcome. One of the good things to come out of the recent banter started by Chuck that dragged in Tony and Barry Burke , regarding the 'relevance of SPC' and storage benchmarking in general was a comment from BarryB regarding me having my own blog... So here it is. To set the record straight, from... [Continue Reading]
A work colleague asked if is RSS feed for my blog was broken the other day. Things have been sure crazy for the last few weeks - thats always my excuse! I did have this post in the sidelines, and wanted the mud slinging to stop before I set the record straight. Well, you can probably guess who's... [Continue Reading]
One of the key benefits of the Storwize V7000 product is its built in Virtiualization capabilites. Or as some vendors like to call it Federation?
Its been almost 9 years since we first released SAN Volume Controller (SVC) and in that time, its been through 6 hardware iterations, and 16 major... [Continue Reading]
While doing my late night catch up on whats being said out there, I had meant to post on Chris Evans' previous topic about 8Gb Fibre Channel. His latest post reminding me to explore this a bit further. In an answer to the question about why 8Gbit and not 10Gbit, 8Gbit has the advantage of being... [Continue Reading]
Two posts in the one day - that's probably a record for me, but this one is really just a link. An interesting interview with IBM Storage General Manager, Andy Monshaw over at eWeek . Andy describes, amongst other things, some of the customer business benefits Storage Virtualization can bring, some... [Continue Reading]
IBM today announced the next release of SVC - version 4.2.1 - which will be generally available as of November 16th. The key highlights of this release are : Copy Services Enhancements - including Incremental FlashCopy, Cascaded FlashCopy, configurable copy services space Aid business continuity by... [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]
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]
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... [Continue Reading]
Today marks the next phase, or the beginning of a series of announcements, previews and strategy updates from IBM Storage.
The splash page for todays launch is
over on the storage news pages - this includes R4.3 of DS8000, adding thin provisioning for open systems and mutli-track support for... [Continue Reading]