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How do you set up a Data Guard?

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How do you set up a Data Guard?

Use the following configuration best practices for Data Guard:

  1. Use Oracle Data Guard Broker with Oracle Data Guard.
  2. Use Recovery Manager to Create Standby Databases.
  3. Use Flashback Database for Reinstatement After Failover.
  4. Use FORCE LOGGING Mode.
  5. Use a Simple, Robust Archiving Strategy and Configuration.

How do I create a physical standby database in 11g?

  1. Create a Backup Copy of the Primary Database Datafiles.
  2. Create a Control File for the Standby Database.
  3. Create a Parameter File for the Standby Database.
  4. Copy Files from the Primary System to the Standby System.
  5. Set Up the Environment to Support the Standby Database.
  6. Start the Physical Standby Database.

How do I start a Data Guard broker?

Restart the Oracle Data Guard broker DMON process, as follows: SQL> ALTER SYSTEM SET DG_BROKER_START=TRUE; Enable the broker configuration using the DGMGRL ENABLE command or the Enable operation in the Oracle Data Guard management pages of Cloud Control.

How do I create a standby control file?

To create the standby database control file: Connect to the primary database and create the control file for your standby database. For example, to create the standby control file as / oracle/dbs/stbycf. ctl on the primary site, enter the following: SQL> ALTER DATABASE CREATE STANDBY CONTROLFILE AS ‘/oracle/dbs/stbycf.

What is the difference between Data Guard and Active Data Guard?

The main difference between Oracle Data Guard and Active Data Guard is that Oracle Data Guard is an extension to the Oracle RDBMS that provides data availability and protection while Active Data Guard is an extension of Oracle Data Guard that improves the production database performance for critical transactions.

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.

What is LNS and RFS in Data Guard?

LNS process of primary database captures redo from redo log buffer. Send it to RFS process of standby database through oracle net. RFS process then writes that redo information to standby redo log files.

What is 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).

What is Data Guard broker and how it is useful?

Oracle Data Guard Broker is a centralized framework that automates the configuration, management, and monitoring of an Oracle Data Guard configuration. Oracle Data Guard Broker further enhances Oracle RAC by providing apply instance failover for Oracle RAC standby databases.

How do I know if Data Guard is in protected mode?

Check the Protection Mode in Dataguard Oracle

  1. Protection Mode. There are three protection modes for the primary database:
  2. Check the Protection Mode in Database.
  3. Change the protection mode in Standby Database.
  4. Following parameter must be set for protection mode:
  5. Switch the Protection Mode.
  6. Maximum Availability.

What is sync and async in Data Guard?

The synchronous log transport mode is required for the Maximum Protection and Maximum Availability data protection modes. LogXptMode = (‘ASYNC’): Conversely, asynchronous mode (ASYNC) allows updates (DML) to be committed on the primary server before the log file arrives on the standby servers.

What is Oracle dataguard replication?

Active Data Guard uses the simplicity of physical replication, but its deep integration with Oracle Database provides unique isolation between primary and standby databases to deliver the highest level of protection against data loss.