Configuration Best Practices › Evaluate Schedule Scan Options

Evaluate Schedule Scan Options

Using shorter spans means fewer jobs coming into the queues during a scan, which can improve performance.

Schedule scan runs on a timer basis, bringing jobs into the queues for a specified time frame. The SCNINCR and QDWELL values from the SCHEDULE statement in the initialization file are added to determine the span of time scanned at each wakeup.

Schedule scan also drives prompting. During a prompt cycle, messages are written to the browse data set regarding late jobs or jobs in restart status. For performance purposes, set the SCHEDULE statement REPROMPT keyword to one hour, or turn it off with REPROMPT=0.

Jobs go into RETRY status in the request queue because a dynamic allocation error occurs accessing the file that contains the JCL for the job.

When a nonzero value for the RETRY keyword on the SCHEDULE statement is coded, CA WA CA 7 Edition tries to reattach the JCL from the library.

Use a longer RETRY value for performance purposes.

The XPRETRY keyword lets XPJOBs automatically retry submission when the node or alternate node is in an offline, stopped, or failed state.

Business Value:

This best practice helps ensure more efficient job processing in CA7ONL and less work in the queues to monitor.