Before starting the DBS subtask, be sure that TMSINIT has been started and CA 1 is either ACTIVE or BATCH ACTIVE.
If CA 1 is currently ACTIVE or BATCH ACTIVE when it is invoked, DBS opens both the CA 1 Tape Management Catalog (TMC) as well as the AUDIT file dynamically and waits on any future commands.
If CA 1 is not ACTIVE or BATCH ACTIVE when it is invoked, DBS waits and periodically test the status of CA 1 again. If DBS has made several unsuccessful attempts at initializing and CA 1 is still not active, a message is issued to the operator and it continues waiting until either CA 1 is activated or DBS is stopped.
To use the DBS task, you do not need ENF and CCI.
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