The Control Data Sets workspace shows detailed information regarding the DFSMShsm control data sets. The control data sets are used by DFSMShsm to store information about the current status of data sets under its control. The BCDS (Backup CDS) contains information about the copies of data sets it has backed up. There can be several for the same data set. The MCDS (Migration CDS) contains information about data sets that have been migrated to Level 1 or Level 2. Depending on DFSMShsm settings, there may also be old records for data sets that have been recently recalled. The OCDS (Offline CDS) contains information about volumes that are available for tape processing. It also contains a list of the data sets residing on each volume.
Related topics:
Organization of the predefined workspaces