Turning off Z Abend Investigator with a JCL switch (HFZOFF)

The Z Abend Investigator invocation exits can be turned off at a job-step level by coding the following JCL statement in the job step:

//HFZOFF DD DUMMY

Using the JCL switch is more efficient than coding

//HFZOPTS DD *
  Exclude
/*

because the JCL switch is processed much earlier by Z Abend Investigator than the Exclude option (for details, see Real-time exclusion processing).