As a lot of you know, IBM helps to run a set of world-wide user groups across many of its products. Pre-COVID I had the pleasure of meeting many of our Virtualize family world-wide, and over the last 18 months we've continued these events, all be it in a virtual form. The Nordic User Group,... Continue Reading →
Configuring RAID/DRAID Best Practice – Storwize & FlashSystem
ORIGINALLY POSTED 13th January 2017 TOP 10 POST - 50,563 views on developerworks Here’s another topic I often get asked about. Things used to be quite simple and I covered this for many years in my Configuring for Optimal Performance series of technical university presentations (also here on the blog - parts 1, 2, 3)... Continue Reading →
Spectrum Virtualize XML Statistics Definitions – LINK – SVC/Storwize/FlashSystem
ORIGINALLY POSTED 15th December 2015 8,794 views on developerworks Hi all, I know over the years I've had hundreds of enquiries regarding the XML statistics, what they contains and how they can be decoded. Some of you have written your own parsers and need to know when new things have been added or items changed.... Continue Reading →
Jon Tate – Dispute it we must…
ORIGINALLY POSTED 10th September 2013 18,915 views on developerworks “To err is human; to forgive, divine.” Alexander Pope. Well we are mixing up poetry and Star Wars here today (or tomorrow, if it is already tomorrow where you are), and finish it off with a cryptic message. Anyway, let's cut to the chase here: a... Continue Reading →
Jon Tate – Flash but not Gordon – Just an IBM redpaper
ORIGINALLY POSTED 3rd June 2013 26,956 views on developerworks It is hard to look anywhere these days without seeing Flash being used. I think the word that marketing like to use, unless it has fallen out of favour is "pervasive". Mind you in the hands of some people it is definitely moving from "pervasive" to... Continue Reading →
Configuring IBM Storwize and SVC for Optimal Performance – Part2
ORIGINALLY POSTED 17th August 2012 TOP 5 POST - 77,440 views on developerworks Thanks to everyone who responded to my Part 1 post, I'm amazed at how many people must read what I have to say! Based on the number of you that have either spoken to me in person, or emailed. I'm glad to... Continue Reading →
V7000 (Gen1) SPC-1 Benchmark
ORIGINALLY POSTED 14th June 2012 24,016 views on developerwortks. 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... Continue Reading →
Configuring IBM Storwize V7000 and SVC for Optimal Performance – Part1
DISCLAIMER - Please note that the RAID discussion, in terms of number of arrays matching cores is no longer relevant if you are using Distributed RAID (DRAID) - where a single DRAID array can use all the available cores. BW Dec 2019 For more updated DRAID information see 'Configuring RAID/DRAID Best Practice' ORIGINALLY POSTED 20th... Continue Reading →
Breaking the 500,000 IOPs SPC Barrier
ORIGINALLY POSTED 3rd February 2012 20,233 views on developerworks 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,... Continue Reading →
SVC / V7000 6.2 Software and Hardware Announcements
ORIGINALLY POSTED 9th May 2011 17,074 views on developerworks As hinted by my last post, the next release of SVC software is on its way, available in early June, along with the new optional 10Gbit iSCSI support. Since SVC, and V7000 are essentially the same thing, just packaged in different hardware vehicles, all of the... Continue Reading →
Barry Whyte and Andrew Martin : IBM Storage 