DFSMSrmm keeps track of permanent I/O errors for a volume. During each run of expiration processing, DFSMSrmm sets the release actions for volumes that are not pending release. During the run volumes that are marked with the return to scratch release action, that have permanent I/O errors will be marked for replacement. DFSMSrmm only identifies those volumes with the ‘return to scratch’ release action, not those with the ‘return to owner’ action.

Use the RMM SEARCHVOLUME subcommand to obtain information about volumes that might need replacement. You can use the extract data set or the DFSMSrmm ISPF dialog to check for volumes with temporary errors. See JCL for creating an extract data set for information about using the extract data set to identify volumes with temporary errors.