IMS Program Restart Facility for z/OS features
Restart automation of BMP programs
Automate the restarting of IBM® IMS™ Batch Message Processing (BMP) programs and IMS Batch DLI/DBB Batch programs. Avoid the manual and error-prone process of identifying the last valid Checkpoint ID for the batch program and the associated log data sets to include in the restart job. Determine what is required to restart a batch program and dynamically create the restart job with the correct Checkpoint ID and IMS log data sets.
Backout and Restart options
Take advantage of options that allow IBM IMS Program Restart Facility for z/OS® to automatically drive the backout and restart processes as part of the application job step. With these options, there is no need to run a separate IMS Batch Backout job or modify the restart job JCL following an abnormal termination.
Checkpoint creation in batch programs
Invoke IMS Program Restart Facility for z/OS every time a BMP program or IMS Batch DLI/DBB program issues a Checkpoint (CHKP) call. Optionally track time between checkpoints, and if too long, alert the user. You can also check if the batch application is creating too many checkpoints and bypass checkpoint processing to conserve CPU and resource usage.
Backout on demand
Recognize the need for Backout during job abnormal termination for IMS Batch DLI/DBB programs and take control of the termination process. If IMS Program Restart Facility for z/OS determines that Backout is required, it ensures that the log data set is closed, and drives the backout process before it allows the termination process to complete.
Automatic batch programs Restart
Use the special checkpoint data sets that were created when the original IMS BMP or IMS Batch DLI/DBB program was executed to determine the need for restarting the program. If IMS Program Restart Facility for z/OS determines that Restart is required, it automatically allocates the correct log data sets to the job and modifies the job execution parameters to allow the Restart to be performed automatically.
Database availability after failure
Improve IMS database availability after batch program failures by closing the log data set for IMS Batch DLI/DBB programs requiring Backout and performing Backout automatically as part of the abnormal termination process. This feature releases database locks and allows online processing to continue for the affected databases.