You use the New Datastore wizard to create your datastores. Depending on the type of storage you have in your environment and your storage needs, you can create a VMFS, NFS, or virtual datastore.
A Virtual SAN datastore is automatically created when you enable Virtual SAN. For information, see the Administering VMware Virtual SAN documentation.
You can also use the New Datastore wizard to manage VMFS datastore copies.