Exit routine processing

When an ACTIVATE command is issued, the system ensures that the devices to be deleted are offline and unallocated. If the activate request has passed this validation step, and an authorized program issues CONFCHG CHGREQ, the system passes control to the exit routine. When a requested activation change that involves deleting a device or deleting a path to a device is rejected, the system also passes control to the exit routine.

If the program issues CONFCHG CHGCOMPL, the system passes control to the exit routine when a dynamic I/O configuration change completes successfully.

You are responsible for writing the configuration change exit routine. This routine takes actions based on the needs of your program, and can do such things as pinning and unpinning devices, and keeping track of devices that are added, modified, or deleted.