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  1. Preface
  2. Part 1: PowerExchange Change Data Capture Introduction
  3. Part 2: CDC Components Configuration and Management
  4. Part 3: CDC Sources Configuration and Management
  5. Part 4: Change Data Extraction
  6. Part 5: Monitoring and Tuning
  7. Appendix A: CDC for z/OS Troubleshooting
  8. Appendix B: DTL__CAPXTIMESTAMP Time Stamps

Logging DB2 Data in a Data Sharing Environment

Logging DB2 Data in a Data Sharing Environment

The Post-Log Merge option of the PowerExchange Logger allows you to capture changes using multiple PowerExchange Loggers on multiple z/OS systems and then extract the merged changes from a single Logger. With DB2 data sharing, the Post-Log Merge option of the PowerExchange Logger for z/OS is not required.
The DB2 ECCR uses DB2 IFI 306 calls that return change information from all members in the data sharing group.
Post-Log Merge is not required for DB2 data sharing. However, if Post-Log Merge is used for another reason, the DB2 ECCR can also attach to a member Logger of the Post-Log Merge group, even when running in data sharing mode. A single DB2 ECCR is all that is required, even when connecting to a PowerExchange Logger in a Post-Log Merge configuration.

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