You can activate Virtual SAN when you create a cluster or enable Virtual SAN on your existing clusters. Characteristics of a Virtual SAN ClusterBefore working on a Virtual SAN environment, you should be aware of the characteristics of a Virtual SAN cluster. Before Creating a Virtual SAN ClusterThis topic provides a checklist of software and hardware requirements for creating a Virtual SAN cluster. You can also use the checklist to verify that the cluster meets the guidelines and basic requirements. Enabling Virtual SANTo use Virtual SAN, you must create a host cluster and enable Virtual SAN on the cluster.