Possible error conditions

The installation may introduce a number of error conditions in the process of re-entering a cartridge into a library under the control of the volume not in library installation exit. The following errors may cause immediate or eventual job failures:

Entering a volume into the wrong library (prompts the issuance of message CBR3646D)
Setting the wrong storage group name in the cartridge entry installation exit
Setting incorrect tape device selection information in the cartridge entry installation exit
Setting the scratch volume use attribute in the cartridge entry installation exit incorrectly
Inadvertently requesting a volume with a level of TDSI information not recognized by the system

Note: If the operator enters the volume into the wrong library, or OAM is not aware of the entry of the volume within 15 minutes, OAM issues the CBR3646D message. This allows the operator the opportunity to correct the situation and retry or cancel the operation.

The best way to avoid these errors is to not eject the volumes in the first place. If this is not practical, then the tape volume record should be kept by using the KEEP option of the LIBRARY EJECT operator command or through the ISMF Mountable Tape Volume line operator when the volume is ejected. This preserves the information about the tape volume so that the Cartridge Entry Installation Exit does not have to rebuild the tape volume record.

If a job on a lower-level system inadvertently requests a volume whose media type or recording technology is not understood at this software level, the exit can cancel the job, returning a return code 8, or it can proceed with entering the volume. If the exit proceeds and enters the volume, once it is successfully entered on an up-level system and the exit returns with a return code 4 (indicating retry), the job on the down-level system fails during job step setup on subsequent retrieval of the volume record. If the host detects that it is an up-level volume (if the TCDB volume record exists), the call to the exit is bypassed and the job is canceled.