To label volumes by using the EDGINERS initialize function, set the DFSMSrmm initialize action by using the DFSMSrmm ISPF dialog or the RMM TSO subcommand.

If you set the initialize action for a scratch volume before it enters an automated tape library and then enter the volume into the automated tape library, DFSMSrmm defers initialization to DFSMSdfp labeling support. If you later eject the scratch volume before it is used DFSMSrmm reinstates the initialize action.

If you set the initialize action for a scratch volume while it is resident in an automated tape library, the initialize action is set outstanding and you must use the DFSMSrmm EDGINERS utility to create the labels. See Using EDGINERS with system-managed tape libraries for additional information.

When you use the DFSMSdfp labeling support in an automated tape library, DFSMSdfp obtains the volume serial number from the library vision system, but still issues the WTOR IEC704A to prompt the operator to provide optional owner information. The IEC704A message text includes an indicator that the volume is system managed. Normally, DFSMSrmm provides information to bypass the issuing of the message. If DFSMSrmm is running in record mode or a volume is rejected in warning mode, the WTOR is issued and must be replied to by the operator.

The DFSMSdfp labeling support for manual tape libraries cannot obtain the volume serial number from the vision system. DFSMSdfp still uses the WTOR IEC704A to prompt the operator for it.

You can decide to exploit DFSMSdfp automatic labeling to avoid unnecessary mounting of volumes or use EDGINERS before volumes enter the tape library or after volumes are resident in the tape library.