The --delete --device action deletes quorum disk devices.
If only an ASM disk group name is specified, the action deletes all the devices that have been added to the ASM disk group.
If only a host name is specified, the action deletes all the devices created from the targets on the host.
If both an ASM disk group name and a host name are specified, the action deletes a single device created from the target on the host and that has been added to the ASM disk group.
If neither an ASM disk group name nor a host name is specified, the action deletes all quorum disk devices.