Starting IBM Z Workload Scheduler with an empty checkpoint data set

About this task

The checkpoint data set is empty the first time IBM Z Workload Scheduler is started. It is also empty if it has been deleted and reallocated for some reason, such as if it was damaged.

When IBM Z Workload Scheduler is started for the first time, the following occurs:
  1. The checkpoint data set is formatted and initial values written to it.
  2. When JTOPTS CURRPLAN(CURRENT) is specified, IBM Z Workload Scheduler will issue message

       EQQN026W A NEW CURRENT PLAN (NCP) HAS BEEN REJECTED

    and stop processing.
  3. When JTOPTS CURRPLAN(NEW) is specified, IBM Z Workload Scheduler carries out recovery processing using the new current plan (EQQNCPDS and EQQNCXDS) as described in Current-plan recovery processing. There might be a new current plan if you are migrating from a previous release or version and you have placed the converted current plan in the new current plan data sets as part of the migration procedure.

    If the new current plan is empty, recovery processing ends, IBM Z Workload Scheduler becomes active without a current plan, and job tracking is not started.

  4. If recovery processing with the new current plan is successful, IBM Z Workload Scheduler starts normal processing.
If you start IBM Z Workload Scheduler after having deleted and reallocated the checkpoint data set, and you specified JTOPTS CURRPLAN(NEW), the following occurs:
  1. IBM Z Workload Scheduler carries out recovery processing with the new current plan, as described in Current-plan recovery processing.
  2. IBM Z Workload Scheduler normal processing starts.
Note: When current plan recovery processing is performed after IBM Z Workload Scheduler is started with an empty checkpoint data set, IBM Z Workload Scheduler uses the primary data sets EQQJT01, EQQDL01, and EQQJS1DS as the active data sets. If a primary data set was not the active data set at the last shut down, copy the data from the previously active data set to the primary data set. Or events since the last current plan backup will not be applied. You can check which data sets were active by reviewing the message log or by looking for the data sets with the latest time stamp.