User Exits › How You Manage User Exits › Notes on Using Exit Routines

Notes on Using Exit Routines

Consider these points before you invoke a CA MIA exit routine:

• TPCF calls the exit routines whenever a device managed by CA MIA is in the EDL of a job or candidate list.
• You can use exit routines to supplement the other methods of TPCF influencing device selection, such as the VARY command.
• You cannot use the exit routines to add devices to the eligible device list, or to the offline device list.
• You can invoke more than one type of device control logic.
• TPCF will not call the TPCRECXT exit routine under two conditions:
  • The combination of job reserve, TPCEDLXT, robotic device allocation, and overgenned processing has eliminated all offline devices, and WAIT is not an option on the IEF238D WTOR, and SETOPT TPCF AUTOREPLY=(NOWAIT=(CANCEL=YES)). In such cases, TPCF replies CANCEL automatically to the IEF238D WTOR.
  • TPCEDLXT responded with a return code of 12. In these cases, TPCF replies CANCEL automatically to the IEF238D WTOR.
• TPCRECXT cannot add options to allocation recovery messages.