A closer look at Portworx

Last month I had the opportunity to attend DockerCon17. One of the break-out sessions that I attended was from a company called Portworx. Portworx provide a solution for stateful docker container storage, which is what caught my interest. There are lots of companies who have already created docker volume plugins for their existing storage solutions, [...]

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WHIPTAIL Announce 4.1.1 Update

Last week, I presented at the UK National VMUG. I took the opportunity to catch up with Darren Williams (Technical Director, EMEA & APAC) of WHIPTAIL who was also [...]

vSphere 5.1 SSD Monitoring reporting N/A for certain fields

One of the new features of vSphere 5.1 was the SSD monitoring and I/O Device Management features which I discussed in this post. I was doing some further testing on this [...]

VAAI Comparison – Block versus NAS

I get a lot of questions around how the vSphere APIs for Array Integration (VAAI) primitives compare from a protocol perspective. For instance, a common question is to [...]

Heads Up! VSA Manager 5.1.x – Install Error 2896: Executing action failed

I was asked recently to provide some assistance with a VSA installation problem. The issue which this person experienced is described in the release notes for VSA 5.1.1 [...]

vCenter Operations Manager – Caught out by new Solution Licensing step

In a few recent posts, I've been looking at performance counters in vSphere 5.1. One of my colleagues, Hugo Strydom, reached out to me about doing a vCenter Operations (vCOps) [...]

Heads Up! If running VSA 5.1, you do not need VSA 5.1.1

Folks, This is currently not very clear in the release notes, but if you are already running vSphere Storage Appliance (VSA) version 5.1, you do not need to update to VSA [...]

Why is the siocActiveTimePercentage counter only ever 0% or 100%?

Last week I published a blog article about new performance counters in vSphere 5.1 for monitoring Storage I/O Control (SIOC). Soon after publishing, I received a question [...]