OpenEdge Replication begins when the source and target databases are started. While the OpenEdge Replication server and OpenEdge Replication agent are performing startup and initialization, other database activity is, by default, not allowed. However, you can change this default if you want. (See the description of the defer-agent-startup property in Choose the OpenEdge Replication agent startup mode for more information.)

If a process attempts to connect to either database during this phase, the process will block until OpenEdge Replication has completed its work and normal database activity starts. See Access a running replication-enabled database for further details about what access is permitted and when it is permitted.