Using Replication Server, you can create and maintain a warm standby environment for an Oracle database.
In standby mode, Replication Agent:
When the active database fails or when you want to perform maintenance on the active database, you can switch to the standby database. For instructions on switching the active and standby database, see “Managing Heterogeneous Warm Standby for Oracle” in the Replication Server Heterogeneous Replication Guide.
To function in warm standby mode:
Replication Agent must be installed on both the primary and standby side and must also be successfully initialized. The Replication Agent on the standby side should be running in standby mode with the ra_standby parameter set to true.
Replication Agent should have the rs_source_ds and rs_source_db parameters configured as physical connections to Replication Server.
Replication Agent should enable or disable the replication of DDL statements as desired using the pdb_setrep_ddl command.
Replication Agent should set the pdb_auto_create_repdefs, pdb_dflt_column_repl, pdb_dflt_object_repl, and pdb_automark_tables parameters to true.
For details on using these commands and configuration parameters, see the Replication Agent Reference Manual. For detailed steps involved in creating and managing warm standby for Oracle, see the Replication Agent Heterogeneous Replication Guide.