DFSMShsm, a z/OS functional component, automatically manages low activity and inactive data in both system-managed and non-system-managed environments. DFSMShsm also provides automatic backup and recovery of active data in those environments.

DFSMShsm can use the TS1140 tape drive (3592 Model E07, 3592-4E) for all functions. DFSMShsm normally uses non-WORM media (MEDIA9, MEDIA11, and MEDIA13) for non-ABARS functions. DFSMShsm uses all media, including WORM (MEDIA10 and MEDIA12) for ABARS processing. DFSMShsm can use the WORM media for non-ABARs processing, if specifically allowed by your installation.