Disable selective ENF events in Scheduler Job Management

Products

• Scheduler Job Management

Issue/Introduction

Disabling unnecessary ENF events can improve Scheduler performance. The Scheduler initialization statement CAS9 ENF allows events JOBPRINT, JOBPURGE and DSCLOSE to be turned off without affecting other ENF applications. 

  

 

Resolution

You may have multiple copies of Scheduler but do not need to process all event types from ENF. For example, the DSCLOSE event may be needed for one copy of Scheduler but is not needed in a secondary copy of Scheduler.  You have the ability to disable the DSCLOSE event in the secondary copy with the use of CAS9 ENF command in the initialization options. In this scenario, the CAS9 ENF command would be: 

CAS9 ENF JOBPRINT=YES,          USE JOBPRINT EVENT
         JOBPURGE=YES,          USE JOBPURGE EVENT
         DSCLOSE=NO             USE DATASET CLOSE EVENT 

Here are the descriptions of the event types which are optional and can help with Scheduler performance.

DSCLOSE=YES|NO
DSCLOSE events are used to satisfy DSN and GDG criteria.
Important!  DSCLOSE=NO is recommended for sites that do not use DSN or GDG criteria.

JOBPRINT=YES|NO
JOBPRINT events are used for station 60 which are print station jobs.
Important!  JOBPRINT=NO is recommended for sites that do not use station 60 jobs. 

JOBPURGE=YES|NO
JOBPURGE events perform two functions where it will mark station 40 jobs with a status of Completed as Purged and complete station 60 jobs.
Important!  JOBPURGE=NO is recommended for sites that do not use station 60 jobs and are satisfied with a status of Completed for station 40 jobs (instead of Purged). 

When these events are set to YES in Scheduler, they must also be activated in ENF otherwise Scheduler cannot get to these events. 

 

 

Additional Information

Scheduler Bookshelf

CA Scheduler Job Management Systems Programmer Guide. Chapter 2, Initialization