User Exit Reference › USREXIT7 User Exit (Tape Positioning User Exit) › Prototypes

Prototypes

There are two prototype exits, regardless of the TMC you use, VMTEXIT7 XASSEMBL and VMTEXIT7 XEXEC.

These prototype exits perform tape label and file sequence positioning for all user IDs except those listed in an internal table.

Important! If you are interfacing CA VM:Tape with CA VM:Backup, add the user ID of your CA VM:Backup service virtual machine to the list of user IDs for which tape positioning should not be performed. (Also add the user IDs of any test or non-production CA VM:Backup service virtual machines.) Implementing this exit without excluding CA VM:Backup will cause problems for CA VM:Backup mounts.