Hitachi at VMworld 2014: Introduction

Looking forward to meeting many VMware community peers and friends next week at VMworld in Barcelona. As always it promises to be an awesome week. This year I’m working for Hitachi Data Systems so without being too pushy I want to increase awareness of our  fantastic integration with VMware Solutions as well as our partnership with VMware. VMware and SAP are two of our key global partners that you will see much tighter integration with in Read More …

I’m in a Fibre-Channel State of Mind

This post covers an area that is close to my heart, Fibre Channel, and Fibre Channel-based systems. The Monolith becomes the Mid-Range I’ve been working in this space for 13 years. Back in 2001 I installed a pair of EMC Clariion FC4700 arrays, a product of the (at that time) recent acquisition of Data General by EMC.

VMware Metro Storage Cluster Explained – Part 2: The Potential Solution

Recap In my last article, I discussed a typical dual-site scenario where storage replication is used to synchronously mirror a volume or LUN object between data centers. The goal is to mitigate the risk of Data Center failure. While it does that in some ways by creating multiple copies of data, the failover process is complex, depending on the scenario. Data can become corrupt, and systems can become isolated. There Read More …

VMware Metro Storage Cluster Explained – Part 1: The Challenge

First and foremost, vMSC stands for vSphere Metro Storage Cluster, that is, a vSphere HA/DRS cluster stretched over distance. After attending Duncan Epping & Lee Dilworths presentation at VMworld 2013 on vSphere Metro Storage Clusters (Session BCO4872), it got me thinking about writing this article. The use case for vMSC is pretty clear….to provide VM mobility and resilience across Data Centers. As a storage practitioner for 12 years, one of Read More …

Thick versus Thin on VMware – a subject with a deep impact

I have been working lately with vmware & storage in environments where presentation of storage at different layers within the stack and the ability to report and understand usage and over-provisioning is a difficult challenge. In Vsphere 4.X this could be a ticking time bomb – at least that’s been my recent experience – so I’m blogging about how this can adversely impact space utilisation in an environment. It’s neither the fault Read More …