You can configure the threshold of outstanding updates to a secondary server that triggers an alarm. When the outstanding updates reaches a configured percent of the upsync log capacity, an event is issued and the current condition of the connection (volume of outstanding data, current throughput, time of the event, and so forth) is logged.
The events are tracked in the MPE/MRA replication report. See Viewing the MPE/MRA Replication Statistics Report for more information.
To configure the upsync log alarm threshold: