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User Guide
Introducing OpenEdge Replication : OpenEdge Replication terminology : Source and target databases : The source database
The source database
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.