Understanding Disk Resource Control Effects

On systems using the Disk Resource Control (DRC) system, the system normally delays restarting WFL jobs until the DRC system becomes active. The WFL jobs remain in their job queues, and the system displays an RSVP message notifying the operator that DRC initialization is underway. You can use the FS (Force Schedule) system command to force a queued WFL job to restart before DRC is active. However, be aware that the following statements in a WFL job can have unexpected effects if they execute before DRC is active:

  • CHANGE and REMOVE statements

    If these statements specify usercoded files, the statements are skipped without being executed.

  • COPY statement

    If this statement creates a usercoded copy of a file, the copy proceeds normally, but DRC is not notified of the increased disk usage for that usercode. Therefore, it might become possible for the actual disk usage of that usercode to exceed the limit set in DRC.

    For further information about DRC, refer to the System Administration Guide and the System Operations Guide.