Entering tape volumes in the library using the installation exit

To enter tape volumes into the library under the direction of the exit, the following conditions must both be met:

OAM must be up and running on at least one of the systems sharing the tape library dataserver in the SMS complex or TCDBplex.
OAM must have been started since the most recent IPL on the system running the requested job.

When entering a volume into a tape library under the direction of CBRUXVNL, you must set the volume use attribute to PRIVATE; otherwise, the request fails. This is because only specific volume requests are handled by the exit and a specific volume request for a scratch tape is not permitted. Volume use attributes are set by default from the ISMF Library Definition or by the cartridge entry installation exit.

Perform the following steps when you enter a volume into a tape library:

Locate the requested volume using the tape management system inventory.
Enter the volume into a tape library (or if indicated, the specific tape library). For a logical volume, enter the required exported stacked volume and initiate a single volume import at the library manager console.
Reply to the outstanding WTOR at the MVS console.

Note: If the exit is waiting for an extended period for human intervention to finish processing, this causes delays for other jobs that may be processing at the same time or that may need the same resources as the job for which the exit is active. If the volume is not entered into the library within 15 minutes, CBR3646D is issued indicating that the operator should retry or cancel the job request.