Register a vCenter Plugin with vCenter Server To manage volumes or Virtual Volumes (vVols) through vCenter Server, you must register the HPE vCenter Plugin with vCenter Server. Add a vCenter Server. vcenter --add [--name] [--hostname {host_name|ip_addr}] [--port_number port_number] [--username user_name] [--password password] [--description description] [--subnet_label subnet_label] Register a vCenter Plugin with vCenter Server. vcenter --register vCenter_name [--extension {web| thick| vasa}]NOTE: To manage vVols, specify the --extension vasa command option to register the vCenter extension for a VASA provider.