Barry Whyte and Andrew Martin : IBM Storage

Previous Posts

  • Here we go again…

    ORIGINALLY POSTED 29th May 2008 11,199 views on developerworks So I almost ‘did a Tony’ just now, spraying my coffee over my screen and keyboard. The reason for this, the recent post from Hu over at HDS. (Its been a while since I even bothered to read his posts, and even longer since I commented [Read More]

    Here we go again…

  • Why Virtualize? Part2

    Ye’canny change the laws of physics, cap’n ORIGINALLY POSTED 22nd May 2008 7,259 views on developerworks So I haven’t forgotten I promised a part work on “Why Virtualise?” Last week I was in Phoenix for the IBM CTRE. Each year IBM gathers 500+ of its technical achievers over the last 12 months and honors them [Read More]

    Why Virtualize? Part2

  • Host clusters in 7.7.1 and later

    ORIGINALLY PUBLISHED 21st June 2017 In 7.7.1 we added a long-awaited feature that we have called host clusters.   This feature is not exactly rocket science to understand, but here’s a breakdown of a couple of useful scenarios that you can use it for, and some information about how to configure it.  Note – host cluster [Read More]

  • Using Dedicated ports for inter-node communication and replication

    ORIGINALLY POSTED 13th August 2017 I’m in Melbourne this week, because I’m attending the Technical University here starting tomorrow.   So I thought that this would be a good time to get through one of my backlog of Blog posts. For a number of years now it has been recommended to have dedicated ports for inter-node [Read More]

  • Deduping Controllers such as A9000 behind SVC – Parts 1-3

    ORIGINALLY POSTED 13th April 2017 Hi everyone, Its been a long time since I’ve posted here and I apologize for that. Over the last few months, we have been seeing more and more deduping Controllers such as the A9000 being deployed behind SVC.  There are definitely good ways and bad ways to perform over-allocation and [Read More]

  • How to have a single volume with a copy in 3 sites

    ORIGINALLY PUBLISHED 13 November 2017 Background It’s been a highly requested feature to have SVC or Storwize keep a single volume available in three sites.  The most common use case is to have a pair of synchronous replication datacentres that provide zero data loss if you have a disaster at a single site, whilst also [Read More]

  • A Hidden new feature in 7.4 that I suggest everyone should enable

    ORIGINALLY POSTED 2nd June 2015 Hi All, Edit:  A number of my colleagues have misunderstood what I mean when I call this a hidden feature.  At no time did anyone want to hide the feature from our customers!  I was merely commenting on the fact that unless someone told you about this feature, there was [Read More]

  • HDS making a great case for SVC

    ORIGINALLY POSTED 7th May 2008 7,644 views on developerworks Its been a while, and recently I’ve not had the time or inclination to comment about Hu’s blogketing, but a few of us found his recent post amusing. (As we often do) I guess Hu has a dilemma. On the one hand he’s been telling us [Read More]

    HDS making a great case for SVC

  • Why Virtualize? Part1

    ORIGINALLY POSTED 1st May 2008 7,980 views on developerworks Since the explosion of interest in Host based virtualization products like VMware, Zen and Microsofts Hyper-V, it seems like the IBM concept from the 70’s mainframes has really hit home. I remember sitting in on a very early customer focus group when we are mid-development of [Read More]

    Why Virtualize? Part1