Oracle 11g Data Guard

Oracle Data Guard

Creating a Physical Standby Database

http://www.oracle.com/technology/obe/11gr2_db_prod/ha/dataguard/physstby/physstdby.htm

Creating a DG Broker Configuration

http://www.oracle.com/technology/obe/11gr2_db_prod/ha/dataguard/dg_broker/dg_broker.htm