Deleting runtime Fast Path routing code resource and descriptor definitions with the DELETE command

With dynamic resource definition (DRD) enabled, you can delete runtime Fast Path routing code resource and descriptor definitions dynamically, eliminating the need to use the online change process or the batch system definition process with an IMS cold start.

1. Check for work in progress by issuing a QRY RTC SHOW(WORK) command. If there is work in progress, either:
   • Wait for the work to finish.
   • Address the work in progress.
2. The next step can vary based on whether the transaction is associated with a Fast Path potential FP(P) or Fast Path exclusive FP(E) transaction.
   • Delete a routing code that is associated with a Fast Path potential transaction using the DELETE RTC command. If the program is scheduled, the routing code cannot be deleted and you must stop the region before you issue the DELETE RTC command.
   • Delete a routing code that is associated with a Fast Path exclusive transaction using the DELETE TRAN command. The DELETE RTC command fails.
   • Delete a runtime routing code descriptor definition by issuing the DELETE RTCDESC command.
3. If you are using the IMSRSC repository to store your Fast Path routing code resource and descriptor definitions, issue DELETE DEFN commands to delete them from the repository.
   The routing codes associated with both FP(P) and FP(E) transactions are maintained in the repository.

   Use the DELETE DEFN command to delete routing codes referenced by FP(P) transactions. Then issue DELETE DEFN commands to delete FP(P) transactions and FP(E) transactions. When an FP(E) transaction is deleted from the repository by using the DELETE DEFN command, the routing code associated with the FP(E) transaction is also deleted from the repository by RM.