Doing maintenance on a Two-Node (Direct Connect) vSAN configuration

Advertise here with BSAI was talking to a partner and customer last week at a VMUG. They were running a two node (direct connect) vSAN configuration and had some issues during maintenance which were, to them, not easy to explain. What they did is they placed the host which was in the “preferred fault … [Read more...]

Holiday gift: vSAN Essentials book available for free

Advertise here with BSAChristmas is coming so Cormac and I figured we would do something special for everyone, after a long debate we decided to make the vSAN Essentials book available for free. Note that this is the “Essential Virtual SAN” book which was published by VMware Press / Pearson and is based on … [Read more...]

Which disk controller to use for vSAN

Advertise here with BSAI have many customers going through the plan and design phase for implementing a vSAN based infrastructure. Many of them have conversations with OEMs and this typically results in a set of recommendations in terms of which hardware to purchase. One thing that seems to be a recurring theme is the … [Read more...]

List all “thick” swap files on vSAN

Advertise here with BSAAs some may know, on vSAN by default the swap file is a fully reserved file. This means that if you have a VM with 8GB of memory, vSAN will reserve 16GB capacity in total for it. 16GB? Yes, 16GB as the FTT=1 policy is also applied to it. In vSAN 6.2 we introduced the ability to have swap files … [Read more...]

Can I front vSAN with a VAIO Caching Solution?

Advertise here with BSAI had this question a couple of times already, so I figured I would write a quick post. In short: yes you can put a VAIO Filter in front of vSAN. The question really is, which one would you like to use and why? First of all, the VAIO Filter needs to be certified to be placed in front of vSAN … [Read more...]

Intel Optane support for vSAN, first HCI solution to deliver it

Advertise here with BSAI am in Australia this week for the Sydney and Melbourne VMUG UserCon’s. Had a bunch of meetings yesterday and this morning the news was dropped that Intel Optane support was released for vSAN. The performance claims look great, 2.5x more IOPS and 2.5x less latency. (I don’t know the … [Read more...]

Running a Witness Appliance on a 2 Node vSAN config with FT

Advertise here with BSAI have had various people asking, and to me it felt like an obvious answer, but as multiple have asked over the past couple of month I figured I would dedicate a post to it. The question is if it is supported to run the vSAN Witness Appliance for a 2 Node vSAN configuration on the 2 Node vSAN … [Read more...]

vSAN 6.x customer? vSphere 6.0 Update 3 is out

Advertise here with BSAAre you a vSAN 6.x customer? vSphere 6.0 Update 3 is out! There are a bunch of important fixes and improvements (checksumming performance for instance) in Update 3, so I would highly recommend looking in to it and testing it out. vSAN Details: https://kb.vmware.com/kb/2149127 vCenter Server … [Read more...]

Virtually Speaking Podcast – vSAN Customer Use Cases

Advertise here with BSAAs John Nicholson was traveling in and around New Zealand I was asked by Pete if I could co-host the Virtually Speaking Podcast again. It is always entertaining to join, Pete is such a natural when it comes to these things. I euuh, well I do my best to keep up with him :). Below you can find the … [Read more...]

XenDesktop/XenApp 7.12 MCS works with vSAN

Advertise here with BSAThis is something that has kept me busy for a while. For the past 2 years there were some challenges with regards to the use of MCS and XenDesktop/XenApp in combination with vSAN. In fact, Citrix never supported vSAN and MCS, and it actually did not work either. PVS worked great in combination … [Read more...]