PowerExchange for IMS CDC can captures changes synchronously in the IMS region or asynchronously from IMS logs.
The IMS synchronous ECCR runs in the IMS region. It captures changes as they occur and passes the changes to the PowerExchange Logger for recording. The IMS synchronous ECCR captures changes in the following IMS environments:
DBCTL
DB/DC
Batch
The IMS log-based ECCR runs in a separate address space. It periodically checks the IMS RECON data sets for new system log data sets (SLDS) from which to capture changes and passes any changes from those logs to the PowerExchange Logger for recording.