Category: 2017

• February 26, 2020

  Introducing Spectrum Virtualize 8.1.0

  

  ORIGINALLY POSTED 24th August 2017 10,961 views on developerworks On Tuesday 22nd August we announced the latest code update that will be available soon for the Spectrum Virtualize family.For the first time since 2012 we have bumped the major version number to 8. This signifies some exciting new features that begin with this release in…
• February 26, 2020

  Introducing Spectrum Virtualize 7.8.1

  

  ORIGINALLY POSTED 9th March 2017 14,783 views on developerworks I completely missed the announcement a couple of weeks ago for version 7.8.1 of the Spectrum Virtualize software. Traveling too much at the end of last month and forgot to post an update on whats new. This release I am dubbing the ‘customer council’ release. Last…
• February 26, 2020

  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)…
• February 26, 2020

  Quorum, How does it work? SVC and Storwize

  ORIGINALLY POSTED 10th January 2017 19,712 views on developerworks Spectrum Virtualize Quorum Happy New Year to all. I’ve been getting a few questions relating to quorum devices, and in particular the IP quorum and what happens when various different failure scenarios occur. I thought it was worth detailing things here. So first some background. What…
• January 9, 2020

  DRAID 6 is the answer – what was the question

  ORIGINALLY PUBLISHED 10th May 2017 Hi everyone, The last couple of days have been the UK user group again, and these interesting discussions always give me a number of new topics to talk about on the blog.  The best quote from the User Group can be attributed to @barrywhyteibm “No matter what the question –…
• January 9, 2020

  How to script on Spectrum Virtualize – tips and tricks

  ORIGINALLY PUBLISHED 11th November 2017 Hi everyone, I have been asked to write up some hints and tips about how to do scripting on SVC / Storwize / Spectrum Virtualize.  I do a lot of scripting against our products – sometimes scripts that get published on developerworks (e.g. the Standby Node Script) and sometimes smaller…
• January 9, 2020

  Enhancements for nearline tiers in your multi-tier storage pool

  ORIGINALLY PUBLISHED 31 May 2017 Hi again, With the User Group and IBM TechU this month I have a load of Blog posts that I’ve said I’ll write – so you might see them coming a bit fast this month. There is a new EasyTier feature that we released in 780 called “Warm Promote”.   This…
• November 5, 2019

  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…
• November 5, 2019

  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…
• November 5, 2019

  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…