Overrides

A JOB statement RD parameter applies to all steps of the job and overrides any EXEC statement RD parameters.
When no RD parameter is on the JOB statement, the system uses an EXEC statement RD parameter, but only during the job step. Code EXEC statement RD parameters when you want to specify different restart types for each job step.
A request by a CHKPT macro instruction for an automatic checkpoint restart overrides a request by a JOB or EXEC statement RD=R parameter for automatic step restart.