I am a big vSAN fan and use it in my own Home Lab for most of my VM’s (main exception being VM’s used for backing up … they are on my QNAP fileserver connected via iSCSI). My vSAN cluster configuration is quite static and the only thing that might change in the near future is increasing the capacity by adding an additional ESXi host to the cluster.
Currently I am running with vSAN version 6.2 and since the environment is very stable and it is my “production” environment I don’t plan to upgrade to the latest and greatest version yet. Still, I do want to work with the newer versions and functions (like iSCSI target) to become familiar with them and stay up-to-date with my vSAN knowledge, so I have a test (virtual) vSphere 6.5 Cluster with vSAN 6.5 installed, currently in a 2-node (ROBO) setup with an additional witness appliance.
With the release of vSAN 6.6 (check out the release notes here) I wanted to upgrade my vSAN 6.5 environment. Actually I decided to create a new vSAN 6.6 cluster from scratch with my existing ESXi hosts, which means I first had to delete my existing vSAN 6.5 datastore.