Operation priority

If there is more than one operation that can be started, the WA scheduler selects an operation by investigating these characteristics in the stated order:
  1. Priority 9.
  2. Earlier latest-start time.

    The latest-start time is calculated internally by IBM Z Workload Scheduler, and is the latest time (based on the operation duration) that the operation must start if it is to be completed before its deadline. If no deadline is specified for the operation,IBM Z Workload Scheduler uses the occurrence deadline and subtracts the duration for each successor operation on the critical path.

  3. Priority 8–1.
  4. Shortest estimated duration.
  5. First-in first-out basis.