Explanation: volser is a required
positional parameter for which you substitute the serial number of
the volume you want to delete.
Defaults: None.
Note: - Because volser is a required positional parameter, you
must specify it immediately after the command name.
- Intermittent DELVOLs of active SMS-managed volumes have little
effect, because the list of volumes is obtained prior to each automatic
function, and MVT and MCV records for the volumes are built at that
time.