Protecting CDS backup tapes

The DFSMShsm CDS backup tapes are supported for expiration protection only, as specified by the EXPIRATIONDATE or RETENTIONPERIOD subparameters of the SETSYS CDSVERSIONBACKUP(BACKUPDEVICECATEGORY(TAPE)) command. The SETSYS TAPESECURITY command does not affect the CDS backup tapes, and cannot be used to assign RACF® or password protection as it can with other DFSMShsm-owned tapes. However, the DFSMShsm ARCCBEXT installation exit can be used to assign RACF protection to the CDS backup tapes, and the DFSMShsm ARCTVEXT installation exit can be used to remove RACF protection from the tapes when you want to return them to scratch.