How do I set up Active Data Guard?
Steps to Enable Active Data Guard Option
- Cancel The Redo Apply Process. SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
- Shutdown and start the database in Mount Mode.
- Open the database in Read-Only Mode.
- Start the Redo Apply. (
- Now that the standby is in real-time query mode (the standby is open in read-only.
What is Active Data Guard in Oracle 11g?
Oracle Active Data Guard, an option of Oracle Database 11g Enterprise Edition is a simple, high performance solution that protects your Oracle Database against planned and unplanned downtimes, by allowing you to offload resource workloads from your production database to one or more synchronized standby databases.
How do I configure Dgmgrl?
Oracle 11gR2 – Data Guard Broker
- Configure LISTENER. ORA.
- Configure TNSNAMES. ORA.
- Enable Data Guard Broker.
- Start DGMGRL.
- Create Data Guard Broker Configuration.
- Add standby database(s)
- Enable the configuration.
- Switchover to standby.
What is Active Active Data Guard?
Active Data Guard is a comprehensive solution to eliminate single points of failure for mission critical Oracle Databases. It prevents data loss and downtime simply and economically by maintaining a synchronized physical replica (standby) of a production database (primary).
How do I create a physical standby database in 11g?
- Create a Backup Copy of the Primary Database Datafiles.
- Create a Control File for the Standby Database.
- Create a Parameter File for the Standby Database.
- Copy Files from the Primary System to the Standby System.
- Set Up the Environment to Support the Standby Database.
- Start the Physical Standby Database.
What is Db_unique_name in Oracle 11g?
DB_UNIQUE_NAME specifies a globally unique name for the database. Databases with the same DB_NAME within the same DB_DOMAIN (for example, copies of a database created for reporting or a physical standby) must have a unique DB_UNIQUE_NAME .
How does Oracle Active Data Guard work?
Active Data Guard is a licensed option for Oracle Database Enterprise Edition. Data Guard automatically synchronizes the primary database and all standby databases by transmitting primary database redo – the information used by every Oracle Database to protect transactions – and applying it to the standby database.
What is the use of Active Data Guard?
Active Data Guard enables read-only access to a physical standby database while Redo Apply is active. Queries and reports can be offloaded from the production system to a synchronized physical standby database – all queries at the standby database return up-to-date results.
What is Dgmgrl Oracle 11g?
The Data Guard command-line interface (DGMGRL) enables you to manage a Data Guard broker configuration and its databases directly from the command line, or from batch programs or scripts.