Category: 2008
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Fullerton Singapore Experience true Virtualization
ORIGINALLY POSTED 24th April 2009 8,081 views on developerworks I’ve been head down for the last few weeks, getting a chance to enhance a chunk of code in the middle of the SVC code stack for the next release, the cache. SVC caching is based on an LRU (Least Recently Used) cache model with partitioning…
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SVC: How it works – Part4 Software & Hardware Upgrades in place
ORIGINALLY POSTED 18th December 2008 8,698 views on developerworks In the final part of my ‘How it Works’ series I’m looking at upgrades. Both software and hardware. Maintenance Windows As the world has moved to a 24x7x52 culture, nobody can really afford many, if any, ‘maintenance windows’ these days. I described in part2 that to…
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SVC: How it works – Part3 Manipulate your virtual data
ORIGINALLY POSTED 14th December 2008 11,836 views on developerworks In part 1 of this series I covered the terminology of SVC. Part 2 showed how you would introduce existing volumes into a virtualized environment using SVC. In part 3 I cover the ‘now what’… Making the most of it Once you have imported the data,…
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Off radar
ORIGINALLY POSTED 3rd December 2008 7,852 views on developerworks I’ve been off the radar for a few weeks… A decision I’d made myself, its been a hectic year, and I realised I’d been spending too much time at/with work and not enough with the family. So I decided, despite only being a Scotsman abroad (ok…
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SVC: How it works – Part2
ORIGINALLY POSTED 11th November 2008 11,497 views on developerworks In part2 of this “HiW” – How it Works – discussion of SVC, I look at how you can take an existing SAN infrastructure and Virtualize it. Import your Data Its likely that today you have a SAN of some kind. It maybe a couple of…
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SVC: How it works – Part1
ORIGINALLY POSTED 10th Novembeer 2008 22,769 views on developereworks 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…
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Hu re-invents terms with dubious speculation
ORIGINALLY POSTED 8th November 2008 10,944 views on developerworks Is it me? I was wondering, but I was glad to see ‘the bod’ agreed with me. SAN Virtualization, now I’m sure Cisco would claim the term, VSAN’s, logical abstractions etc etc. Storage Virtualization, thats what I do for a living, thats what our customers know…
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Missing the point, Mis-directions, Mis-interpretations
ORIGINALLY POSTED 31st October 2008 11,476 views on developerworks I’ve posted a long reply to clarify a few things over on the Anarchists post, which is a master piece of missing the point, mis-directions and mis-interpretations, purely aimed at trying to inject further FUD into accepted benchmarks performed by the Storage Performance Council. Lets start…
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eWeek – Virtualization in general
ORIGINALLY POSTED 30th October 2008 7,460 views on developerworks Over on eWeek there is a long (24 min) podcast interview hosted by Mike Vizard, and the director of product marketing for IBM System Storage, Charlie Andrews. Charlie explains amongst other things why the rise of virtualization is going to lead to tighter coupling between server…
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OMG: Hu-itachi maths strikes back
ORIGINALLY POSTED 22nd October 2008 9,276 views on developerworks Oh My God. I’m sorry, but OMG*! Read cache hits. OK, so we can all do them, we can all do lots of them, but it seems only HDS, or maybe Hu (or whoever writes his marketing page that passes for a blog) thinks that Storage…
Barry Whyte and Andrew Martin : IBM Storage 