Automatically backup datasets. Also automatically archives inactive datasets to compressed disk and tape. Archived datasets are automatically recalled when opened.
Originally released as HSM (Hierarchical Storage Manager) in the late 1970s. Renamed to DFHSM from V2. Included in DFSMS/MVS from 1992. Now referred to as DFSMShsm. Currently an optional feature of z/OS.
IBM Product IDs:
Entry last updated: 15-Mar-2016