You can use VSP One Block Administrator to create an external volume to configure a quorum disk or to configure a quorum disk by using an external volume that already exists. If a path or a storage system fails, the quorum disk determines the storage system on which I/O operations from the server will continue.
To temporarily configure a global-active device environment for such purposes as system migration, you can also configure a quorum disk without using an external volume. In this configuration, I/O operations from the server might be unable to continue if a storage system fails.