Define a region size of at least 50 MB and MEMLIMIT=25G if necessary for 64-bit storage use. A best practice is leaving REGION=0M and MEMLIMIT=NOLIMIT when possible.
Earlier releases of the CA7ONL procedure contained the value REGION=6144K in the installation JCLLIB. Although this region is probably sufficient for testing, we recommend that you use a value of at least 50 MB when running in production. Depending on the options and interfaces that you use, your installation could require 120 MB or more. The most current CA7ONL procedure contains REGION=0M.
Some z/OS users have reworked the standard IBM IEALIMIT exit. These users must verify that this exit has not reduced this large region value for CA7ONL.
With Version 12.0, many areas are now allocated in 64-bit storage. These areas include the active workload queues and work files that are used in performing forecasts and sorts. Also, if you are using the agent job interface, CA Integrated Agent Services (CA IAS), 64-bit memory is used. This amount is coded as MEMLIMIT on the CA7ONL EXEC statement. For CA IAS, a minimum of 10 MB is required. Depending on the installation requirements at your site, add MEMLIMIT=25G to the EXEC statement.
Business Value:
This best practice results in a better overall performance for CA7ONL.
|
Copyright © 2013 CA Technologies.
All rights reserved.
|
|