Attention: If the dump copy you are removing is on a stacked dump
tape and there are valid dump copies for other primary volumes on
the tape, you cannot delete the dump tape (step 2) and you cannot
delete the MCP record (step 3) without removing valid dump copies
and losing data. The MCP record cannot be deleted until the dump tape
expires.
Perform the following steps to discard dump copies associated with
a volume that has been removed from the control of DFSMShsm.
- Obtain a list of the dump information associated with the DFSMShsm-managed
volume by issuing the following command. For volser, use
the level 0 or ML1 volume that was dumped.
LIST VOLUME(volser) BCDS ALLDUMPS
- Discard each dump copy by issuing the following command. For volser, use one of the dump volumes that is part of the dump copy.
The PURGE, REASSIGN, UNASSIGN, and LASTCOPY parameters of the DELVOL
DUMP command can be specified. You must specify COPYPOOLCOPY if the
dump is part of a copy pool copy.
DELVOL volser DUMP
During DELVOL processing, when the last dump
copy that requires the dump VTOC copy data set is deleted from the
dump generation, the dump VTOC copy data set is deleted.
- After you have removed all dump copies associated with a DFSMShsm-managed
volume, you can delete the MCP record. This BCDS record is deleted
by issuing the following command. For volser, use the level
0 or ML1 volume that was dumped.
FIXCDS P volser DELETE
Note: The MCP record also contains
information that is related to the backup VTOC copy data set. This
data set drives the recovery of backed-up data sets. Therefore, do
not delete the MCP record if you still want to recover the data that
was backed up from the level 0 volume.