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VSAN 6.2 – Is it RAID or Erasure Coding?

In case you didn’t notice, VMware has just released version 6.2 (the 4th version) of Virtual SAN, also known as VSAN.  One of the new features is data protection through erasure coding rather than mirroring of data.  Rather confusingly, the regurgitated press releases and many of the of the official blogs seem to be describing… Read more »

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Is it time for VMware to Open Source The ESX Hypervisor?

VMware’s business may well be at an interesting inflection point.  On the latest earnings call, the company indicated that earnings from core products like vSphere was down, while increased business was coming from VSAN, NSX and apparently vCloud Air.  2016 will apparently be a year of transition as the company moves back to growth in… Read more »

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Tech Field Day 10 Preview: VMTurbo

This is one of a series of posts discussing the presenters at Tech Field Day 10, occurring 3rd – 5th February 2016 in Austin, Texas, at which I am an attending delegate.  See links at the end of this post to other presenting vendors.  Details of the event can be found on the Tech Field… Read more »

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A New Paradigm for Computing

The Christmas 2015 edition of Magpi magazine created a world’s first – an entire computer given away on the front of a magazine.  A free Raspberry Pi Zero is certainly a step up from a disk of software, or even the annoying AOL CDs that we know from years gone by.  This is an entire functional… Read more »

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vSphere vDS SPAN port with Wireshark in 2 minutes

I often find myself searching for facts to dispel “hearsay” and guesswork in troubleshooting discussions between the Network and Windows VM teams.  This article is intended to show just how straightforward it is to use the VMware distributed switch SPAN port capability, to put a virtual sniffer on a virtual port on a virtual distributed… Read more »

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EMC, ScaleIO and The VMkernel

There’s been a bit of conversation recently on the intention of EMC to put drivers for their ScaleIO platform into the VMware ESXi hypervisor kernel.  The discussion was triggered by an article published in LeMagIT on 25 November 2014 by Christophe Bardy and subsequently picked up by The Register.  It implied that VMware and EMC were… Read more »

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VSAN, VSA or Dedicated Array?

I don’t normally write blog posts that follow up on other people’s discussions however having seen some of the tweets relating to Nigel’s blog post on VSA versus VSAN, I realised my comments on the subject would stretch to an entire post of their own.  So here it is. The discussion (although I haven’t listened… Read more »

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Getting Started With Docker

In my previous post, I talked about how Docker fits in with workload virtualisation.  In this post, I’ll look at getting started with Docker itself. Installation In this post I’ll look at the basics of installing Docker and creating a container.  I’ll reference the CentOS distribution initially, with more added as I validate and test… Read more »

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VMware’s Virtual and Physical SAN Misdirection

I almost fell off my chair laughing as I read this post by Chuck Hollis that talks about using vSphere VSAN (Virtual SAN) with external storage arrays.  Is it the rantings of someone clinging onto the vestiges of a former life, or perhaps it’s a veiled way for VMware to start unravelling their failed VVOL… Read more »