If there bad or non-existent Primary or Duplex tapes, but a DR tape exists:
. . Set SARINIT DRTAPE=ACTIVE.
. . Run SARPAC, using TAPESEQ=nnnnn-nnnnn, of the tape sequence numbers of the bad Primary tapes, and the SARPAC job
will use the corresponding DRTAPE as input to the job and will create a new Primary tape, Duplex tape, and a new DRTAPE