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Latest Post
Spectrum Virtualize – Policy Based Replication – Guest post by Chris Bulmer
BW: Its been a while since I had a guest post and who better to complete the series of articles discussing… [Read More]
Previous Posts
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Kicking up a ‘Flash’-flood
ORIGINALLY POSTED 7th September 2008 11,310 views on developerworks I was excited about the press release and finally making public news of our work with SVC and NAND flash technology, but I wasn’t prepared for the sheer scale of the press coverage we would get! Just google “IBM quicksilver” for an idea of the coverage [Read More]
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1M IOPs from Flash – Actions speak louder than words
ORIGINALLY POSTED 21st August 2008 25,019 views on developerworks – TOP 10 POST 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, [Read More]
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Survived my first year
ORIGINALLY POSTED 5th August 2008 8,018 views on developerworks It seems hard to believe that its been a year since my first post on this blog. As it seems with all things as we get older, in some ways it seems only yesterday, but in other ways its feels like I’ve always been here… Anyway, [Read More]
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Just what is non-disruptive?
ORIGINALLY POSTED 23rd July 2008 14,567 views on developerworks I was catching up on a few interesting comments on BarryB’s post about the evolution of DMX – notice how he deftly ignored my loaded questions about host side IOPs / MBs – but then we all know EMC, for some reason, just won’t publish any [Read More]
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Happy 5th Birthday SVC
ORIGINALLY POSTED 12th July 2008 12,288 views on developerworks Before I forget I wanted to wish SVC all the best in its 6th year in production. I guess it seems a lot longer, but then I have been (like a lot of the team) working on it for over 8 years now. IBM just celebrated [Read More]
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Morcombe and Wise
ORIGINALLY POSTED 3rd July 2008 13,783 views on developerworks I thought after the 4.3.0 release I’d have a bit more spare time to post more often, however I’m working on a couple of interesting projects that have really taken off over the last few months and I’m once again flat out, not to mention being [Read More]
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SVC 4.3.0 – Virtual Disk Mirroring (VDM) and more
ORIGINALLY POSTED 18th June 2008 16,511 views on developerworks I see that Hu thought he’d better make up some mumbo-jumbo about their ‘chubby-provisioning’ solution. I did post a comment but, as usual, his moderating means he ignores comments he doesn’t like. I’d point you back to my discussion about random 4K writes randomly across a [Read More]
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SVC 4.3.0 – SEV and SEFC in detail
ORIGINALLY POSTED 13th June 2008 13,095 views on developerworks As I promised yesterday this post is devoted to the technical details behind the new Space-Efficient Virtual Disk (SEV) and Space-Efficient FlashCopy (SEFC) functions available for no extra charge upon upgrade to the 4.3.0 software release of SVC. This post covers : SEV Implementation Details SEV [Read More]
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SVC 4.3.0 Space Efficient (Thin Provisioing), Mirroring and much more
ORIGINALLY POSTED 12th June 2008 14,964 views on developerworks So at last I can explain one of the reasons why we’ve all been so busy for the last six months with the somewhat landmark 4.3.0 release of our SVC software. Its been a while since we released a new I/O function, in fact over 18 [Read More]
Barry Whyte and Andrew Martin : IBM Storage 