Starting the scheduler

To start IBM Z Workload Scheduler, enter this z/OS® operator command:

/S procname

where procname is the IBM Z Workload Scheduler JCL procedure name.

If a started task with this name is already active, the second attempt to invoke it ends with an error message. If this happens, the started task in error cannot write an error message to the message log (DD name EQQMLOG) because the message log is already being used by the active started task. If IBM Z Workload Scheduler is to run as a batch job, do not start it with an operator command. Instead, submit a batch job with the same name as IBM Z Workload Scheduler subsystem. JES starts this job in the same manner as any ordinary job.

Note: Because IBM Z Workload Scheduler uses JES exits, among other things, to track the progress of z/OS jobs, it does not start before JES is active.