Removing dump copies and dump VTOC copy data sets from DFSMShsm

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.

  1. 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
  2. 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.

  3. 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.

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