Using DBRC to track batch job logs

An IMS online subsystem always uses DBRC for tracking logs, but a batch job need not use DBRC. If you use DBRC for batch jobs, DBRC tracks which batch jobs create which SLDS.

Recommendation: Use DBRC for batch jobs to eliminate the need to manually keep track of batch SLDSs.

You do not need to create a log for read only (PROCOPT=G) batch jobs, but you do need to create a log for update jobs. For update jobs using DBRC, you cannot use DD NULLFILE or DD DUMMY in the JCL for the log data set.

Specify the use of DBRC during IMS system definition by using the DBRC keyword in the IMSCTRL macro. While IMS is running, you can use the DBRC= execution parameter in the DBBBATCH and DLIBATCH procedures to override the value specified during system definition. If you specify the FORCE keyword during system definition, you must use DBRC, except when you run the Log Archive (batch only), Log Recovery, or Batch Backout utilities.