Replication Servers are designed to store messages from their source and forward them to their destinations. To increase the chances of recovering online messages after rebuilding stable queues, you can set save intervals, measured in minutes, for routes between Replication Servers.
A save interval is the amount of time that a message is stored after it has been forwarded. You can also set save intervals for a physical or logical database connection from a Replication Server, allowing Replication Server to save messages in a DSI outbound queue.
To find the current save interval for a route or connection, use the admin who, sqm command. The Save_Int:Seg column holds two values. The value preceding the colon is the save interval. The value after the colon is the first saved segment in the stable queue.