The LTM Locator is the QID of the most recent transaction operation that Replication Server successfully saved in its inbound queue.
Replication Server provides the LTM Locator to Replication Agent when Replication Agent issues a get truncation command to Replication Server.
Replication Agent issues a get truncation command to update its LTM Locator value during the following events:
Start-up
Recovery processing
When the number of messages sent to the Replication API for processing exceeds the number of messages specified in the value of the API_QID_request_interval configuration parameter
When Replication Extract requests that LTM for MVS obtain a new LTM Locator value
Replication Agent maintains a copy of the LTM Locator in the data set pointed to by the LTMTRUNC DD name in the Replication Agent execution JCL.
