Managing Volumes (Disk Drives)
DSTAT Displays current status of system disk drives.
DISMOUNT Releases reserved volume (MPE V).
LDISMOUNT Releases system-wide reserved volume (MPE V).
LMOUNT Reserves a volume system-wide (MPE V).
MOUNT Reserves a volume.
VMOUNT Enables/disables the movable volume facility.
VSCLOSE Closes a specified volume set; takes it offline.
VSOPEN Reopens a volume set closed with VSCLOSE.
VSRELEASE Releases volume set reserved by VSRESERVE.
VSRELEASESYS Cancels previously issued VSRESERVESYS command.
VSRESERVE Reserves a particular volume set online, system-wide.
VSRESERVESYS Reserves a volume set online system-wide.
VSUSER Lists all users of reserved, mountable volume set.