Preparing for check definition - making sure IBM Health Checker for z/OS is up and running

A remote check can only define itself when IBM® Health Checker for z/OS® is up and running. There are two ways to determine whether IBM Health Checker for z/OS is up and running:

• An APF-authorized remote check can use the ENFREQ LISTEN service to specify a listen exit for ENF event code 67 that tells the check routine that IBM Health Checker for z/OS is up and running. Then, when the remote check routine is assured that IBM Health Checker for z/OS is up and running, it can issue the HZSADDCK macro to define itself.
• An unauthorized remote check cannot use the ENFREQ LISTEN service, so it must periodically re-try the HZSADDCK macro until IBM Health Checker for z/OS is up and running.