Relabeling a volume

When relabeling a volume defined to DFSMSrmm, DFSMSrmm uses the information from the old volume to define the new volume in the control data set.

If you want to remove all the old information from the volume record, use the RMM DELETEVOLUME subcommand to remove the volume record and then issue the RMM ADDVOLUME subcommand to add volume information. If you are authorized to the STGADMIN.EDG.MASTER and STGADMIN.EDG.FORCE security resources, you can use the RMM CHANGEVOLUME FORCE operand to remove old information.

If you have an alternative means of erasing volumes, such as a magnetic degaussing machine for bulk erasure, or if you use an alternative utility to initialize volumes, you must confirm to DFSMSrmm when you have completed the erase or initialize actions to update the DFSMSrmm control data set and to free the processing of other release actions specified for the volume. When you confirm that a manual erase action was completed, DFSMSrmm automatically sets the initialize action for the volume because degaussing the volume destroyed the volume label.

Restriction: Do not degauss IBM® 3592, 3590, or similar media that are pre-formatted with servo tracks. Use of a degausser renders the volume unusable.

To create a list of volumes that need to be erased or initialized, use one of these:

The DFSMSrmm Volume Action Status panel
Specify S against the INIT or ERASE actions in the list of release actions.

or
The SEARCHVOLUME subcommand, as follows:
```
RMM SEARCHVOLUME VOLUME(volser) ACTION(INITIALIZE) LIMIT(*) OWNER(*)
```
See SEARCHVOLUME: Creating a list of volumes for more information on the SEARCHVOLUME subcommand.