The source database is the database where users do their work and make database updates. The database has both write access and read access.

In addition, the source database:

• Is not considered a source database until you enable it as an OpenEdge Replication source database.
• Is the database from which the OpenEdge Replication server replicates data to the target database.
• Uses after-imaging to capture all database activity performed. The after-imaging feature lets you recover a database that was damaged when a failure caused the loss of the database or primary recovery (before-image) area.

  When you enable after-imaging, the database engine writes transaction log records containing a description of all database changes to the after-image files.