What is Oracle Data Guard 11g?

What is Oracle Data Guard 11g?

Data Guard is the name for Oracle’s standby database solution, used for disaster recovery and high availability. You should probably be using the Data Guard Broker to configure and manage your standby database, as described here. …

What is Oracle Data Guard?

Oracle Data Guard ensures high availability, data protection, and disaster recovery for enterprise data. Data Guard provides a comprehensive set of services that create, maintain, manage, and monitor one or more standby databases to enable production Oracle databases to survive disasters and data corruptions.

What are the advantages of using Oracle Data Guard?

Advantages. Data Guard provides high availability for a database system. It can also reduce the human intervention required to switch between databases at disaster-recovery (“failover”) or upgrade/maintenance (“switchover”) time. Through the use of standby redo log files, Data Guard can minimize data loss.

How do I enable Data Guard?

How to Create and Enable an Oracle Data Guard Broker…

1. Create an Oracle Data Guard Broker configuration for the primary database.
2. Add the standby database to the Oracle Data Guard Broker configuration.
3. Configure the apply instance for the standby database.

How do you implement 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 much does Oracle Data Guard cost?

Active Data Guard is not free, however. Active Data Guard carries a list price of $11,500 USD, and both the primary and standby databases must be licensed if they reside on different physical servers.

How does Oracle Active Data Guard work?

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 DataGuard in Oracle?

The software which Oracle Corporation markets as Oracle Data Guard forms an extension to the Oracle relational database management system ( RDBMS ). It aids in establishing and maintaining secondary standby databases as alternative/supplementary repositories to production primary databases.

What is Oracle Active Data Guard?

Active Data Guard. Oracle Active Data Guard is a new option with Oracle 11g. Oracle Active Data Guard enables read-only access to a physical standby database for queries, sorting, reporting, Web-based access, and so on, while continuously applying changes received from the production database.

What is Oracle Data Guard broker?

Data Guard Broker. The broker is part of Oracle’s Database Enterprise Manager and an integral part of Data Guard, it is the management framework. You can of course use SQL*Plus to manage Data Guard but the broker when used with the Enterprise Manager becomes a powerful tool offering the following.

What is active data guard?

Active Data Guard – Answers to Frequently Asked Questions. The Active Data Guard Option is an evolution of Data Guard technology that incorporates significant innovation (multiple patents pending) designed for a specific purpose – to improve production database performance for critical transactions.