VSAN Part 3 – It is not a Virtual Storage Appliance

I’ve actually had to change the order of VSAN posts just to make this very point – VSAN is NOT a Virtual Storage Appliance. I’ve seen multiple conversations on twitter, and some blog posts, which are completely inaccurate when it comes to this point. VSAN is completely and fully integrated into vSphere. There are no appliances to push down and no additional VIBs to install on ESXi version 5.5 and vCenter 5.5 – VSAN is built into vSphere as kernel modules. Now, Frank Denneman wrote an excellent article explaining the advantages of kernel modules over appliances here. I’d suggest reading…

VSAN Part 2 – What do you need to get started?

This post contains the list of items you will need to get started with VSAN. I’ll also try to highlight some best practices when it comes to configuring VSAN. First off, lets start with the software requirements – those are the easy bits. You will need ESXi version 5.5 and vCenter server version 5.5. The vCenter server can be either the Windows version or the appliance version; both support VSAN. Finally you will need to familiarize yourself with the vSphere web client if you haven’t already done so. VSAN can only be managed from the vSphere web client; it is…

A closer look at Tegile

Another storage vendor that I finally managed to catch up with at this year’s VMware Partner Exchange was Tegile. I was curious about the name, and I learnt that Tegile was a merging of  the terms Technology and Agility. Tegile is another vendor that I have seen at various events, but have not had an opportunity to catch up with them in person and learn about their products. This time, I got an opportunity to catch up with Rob Commins (VP of Marketing) and Mike Recker of Tegile, and put a few questions to them.

An Introduction to Flash Technology

As many of you are aware, VMware made a number of announcements at VMworld 2012. There were three technical previews in the storage space. The first of these was on Virtual Volumes (VVols), which is aimed at making storage objects in virtual infrastructures more granular. The second was Virtual SAN (VSAN), previously known as Distributed Storage, a new distributed datastore using local ESXi storage. The final one was Virtual Flash (vFlash). However, rather than diving into vFlash, I thought it might be more useful to take a step back and have a look at flash technologies in general.