z/OS MVS JCL Reference
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RESTART parameter

z/OS MVS JCL Reference

Parameter type

Keyword, optional

Note: Do not specify this parameter for a started task; if RESTART is specified, the job will fail.


Use the RESTART parameter to indicate the step, procedure step, or checkpoint at which the system is to restart a job. You can specify that the system perform either of two restarts:
  • Deferred step restart, which is a restart at the beginning of a job step.
  • Deferred checkpoint restart, which is a restart from a checkpoint taken during step execution by a CHKPT macro instruction.


For detailed information on the deferred checkpoint restart, see z/OS DFSMSdfp Checkpoint/Restart.

Considerations for an APPC scheduling environment

The RESTART parameter has no function in an APPC scheduling environment. If you code RESTART, the system will check it for syntax and ignore it.

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