DFSMShsm uses the STGADMIN.ADR.DUMP.CNCURRNT FACILITY class to authorize the use of the concurrent copy options on the data set backup commands. Checking for authorization is done prior to invoking DFSMSdss. If RACF® indicates lack of authority, DFSMShsm fails the data set backup request if the concurrent copy request was REQUIRED,VIRTUALREQUIRED or CACHEREQUIRED. If REQUIRED,VIRTUALREQUIRED or CACHEREQUIRED was not specified and RACF indicates a lack of authority, DFSMShsm continues to backup the data set as if the concurrent copy keyword was not specified on the backup command.