Using the BCF Log utility

The BCF Log utility helps you analyze BCF operations and provides an emergency solution to some recovery requirements.

The utility allows you to perform the following tasks:

  • Run the IMS Batch Backout utility and back out the complete execution of a job step when the application has used checkpoint calls but did not begin execution with a checkpoint call
  • Complete backout for a batch message processing (BMP) execution since the IMS Batch Backout utility does not support complete backout for a BMP that has participated in syncpoint processing
Warning

Using the BCF Log utility to satisfy the foregoing recovery requirements may create data integrity exposures. Only experienced DBAs should use the utility in emergency situations and then only as a measure of last resort.

The BCF Log utility provides the following functions:

  • Statistics (STATS)
  • Logical compare (COMPARE)
  • Batch backout log create (BCREATE)
  • Online backout log create (OCREATE)
  • Find online BMP executions (FIND)

BCF provides sample JCL for executing the BCF Log utility. Member #BCFLOGU of the BCF sample library contains sample JCL for IMS versions before 5.1. Member #BCFLOG5 of the BCF sample library contains sample JCL for IMS Version 5.1. Member #BCFLOG6 of the BCF sample library contains sample JCL for IMS Version 6.1.

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Using-the-log-utilities


 

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