The control group exit program is currently enabled only for backup control groups. To use this exit for backup control groups, specify an exit program name, library, and format BKUI0100 on the Backup item exit prompt in the attributes for the backup control group you want enabled for backup item exit processing. Alternately, you can use one exit program for multiple backup control groups by specifying *BKUPCY for the Backup item exit prompt in these backup control groups, and specifying the exit program name, library, and format BKUI0100 on the Backup item exit prompt of the Backup Policy.
Libraries in backup control groups might be grouped if the libraries have similar auxiliary storage pool, activity, object detail, and save-while-active attributes, and the grouping does not exceed 300 libraries.
The exit program is not called if there are no entries in the control group, or entries are skipped when restarting a control group (see the Starting sequence (STRSEQ) parameter on the Start Backup using BRM (STRBKUBRM) command).
The exit program is not called for *EXIT entries which have no command defined.
Program messages generated by the exit program are not removed from the job log.
Overrides created by the exit program are not removed until the control group processing ends.
All overrides are deleted and resources reclaimed for when the control group processing ends.
Control group processing continues normally if the exit program does not exist, but exception BRM10A1 is returned.
The existence of the exit program does not change the exception handling capabilities of the control group processing program.
Exit program processing time is additive to the control group processing time.