Deleting a VSAN datastore
Caution: The following steps will cause data loss. Two ways to completely delete a VSAN datastore: I. Move the hosts outside the cluster and delete the cluster Remove all the disk groups configured on the host Put the host into maintenance mode. Move the host outside the cluster Delete the cluster II. Through esxcli Remove all the disk groups configured on the host Open an SSH session to each of the esxi hosts that are part of the vsan cluster Run the command, “esxcli vsan cluster leave”