Duplex tape status

To display the current duplex status of migration and backup processing, issue the QUERY SETSYS command. Look for message ARC0442I in your output. The example below is the type of information you will receive.

ARC0442I TAPE OUTPUT PROMPT FOR TAPECOPY=NO, DUPLEX       
ARC0442I (CONT.) BACKUP TAPES=YES, DUPLEX MIGRATION TAPES=(Y,
ARC0442I (CONT.) ERRORALTERNATE=CONTINUE)

Functions in progress—that is, migration, backup, or recycle—continue with any duplex values that were first set when the processing began. Therefore, any updates to duplex values become effective only at the start of new processing.