z/OS MVS JCL Reference
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Naming a started task (source JCL is a job)

z/OS MVS JCL Reference

If you plan to run the started task more than once on the same system or on different systems within a sysplex, consider using unique job names for each instance of the started task. For example, you may want to name started tasks according to the system tasks they support; you can name one set of jobs for CICS® terminal-owning regions (CICSTOR1, CICSTOR2) and another set for CICS application-owning regions (CICSAOR1, CICSAOR2).

Note: You are not required to change the name of your started task; you probably will not want to change the name of a started task that typically has only one instance (OAM or LLA, for example).
There are four ways that you can name or identify a started task:
  • JOBNAME parameter

    Use the JOBNAME parameter on the START command to rename the started task dynamically (see the description of START in z/OS MVS System Commands for details).

  • Membername

    If you do not use the JOBNAME parameter on the START command and the source JCL is a procedure, the system automatically assigns the membername as the jobname.

  • Source JCL

    If you do not use the JOBNAME parameter on the START command and the source JCL for the started task is a job, the jobname provided on the JOB statement is assigned as the jobname.

  • Identifier

    If specified on the START command, and the started task runs in a system address space that is created using common system address space procedure IEESYSAS, the identifier is assigned to the started task.

    Note: Given the capability to assign the jobname dynamically, it is recommended that you use the JOBNAME parameter instead of the identifier. Only operators can view the identifier for a started task, limiting automation and identification by other users.

If you decide to change the names of started tasks, be sure to update other applications to recognize the new names.

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