In many Replication Server applications:
A primary database is the source of data that is copied to other databases through the use of replication definitions and subscriptions.
A destination database receives data from the primary (source) database.
Replication Server treats a logical database like any other database. Depending on your application, the logical database in a warm standby application may function as:
A primary database, or
A replicate database, or
A database that does not participate in replication
See “Switching the active and standby databases” for more information about warm standby applications that do not participate in standard replication.
See “Warm standby applications using replication” for more information about warm standby applications for primary or replicate databases.