vSAN Erasure Coding Failure Handling

I had a very interesting question recently about how vSAN handles a failure in an object that is running with an erasure coding configuration. In the case of vSAN this is either a RAID-5 or a RAID-6. On vSAN, a RAID-5 is implemented with 3 data segments and 1 parity segment (3+1), with parity striped across all four components. RAID-6 is implemented as 4 [...]

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NFS Best Practices – Part 2: Advanced Settings

Following on from part 1 of the NFS Best Practices, part 2 is going to look at tuning from a vSphere perspective. As mentioned, our objective is to update the NFS Best [...]

NFS Best Practices – Part 1: Networking

There is a project currently underway here at VMware to update the current Best Practices for running VMware vSphere on Network Attached Storage. The current paper is a number [...]

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) [...]