You can activate vSAN when you create host clusters or enable vSAN on existing clusters. When enabled, vSAN aggregates all local storage disks available on the hosts into a single datastore shared by all hosts.

You can run these commands in the ESXi Shell for a host, or the command affects the target host that you specify as part of the vCLI connection options.

Procedure
1

Join the target host to a given vSAN cluster. 

esxcli vsan cluster join --cluster-uuid <uuid>
Note

The UUID of the cluster is required.

2

Verify that the target host is joined to a vSAN cluster. 

esxcli vsan cluster get
3

Remove the target host from the vSAN cluster. 

esxcli vsan cluster leave