How to verity the system is using the Coupling Facility
When using the Coupling Facilty, the following messages will be
displayed in response to a Top Secret TSS MODIFY(STATUS) command.
TSS9596I ---- COUPLING FACILITY STATISTICS -----
TSS9597I REQUESTS (000000001) HITS (000000000)
TSS9598I WRITES (000000000) CLEARS (000000000)