One of the things I enjoy about VMWare vRealize Operations is the ability to add or remove HCI nodes in a cluster. I don’t know if I have been fortunate or unfortunate in my career but I have had to do a lot of VxRail/vSAN Ready Node adds. On some occasions I have been requested to remove hosts from one cluster and build a net new cluster. With this comes the question of is it possible. I hope the below step by step on how to pan for adding hosts is useful.
Article on same process for removing host
How to use What-If
Home > Optimize Capacity > What-If Analysis > infrastructure Planning: Hyperconverged > ADD HCI NODES
Give the Scenario a name
Select the vCenter and the cluster you want to add the hosts into
Select number of servers
Select the VxRail model that is currently in cluster then ok
It is a pretty quick and seamless process to see if adding X number of hosts will meet your growth requirements. Bonus is that you can take screenshots and put them into a report. As always, I hope y’all found this to be useful.