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What is Data Guard?

What is Data Guard?

Data Guard provides the management, monitoring, and automation software to create and maintain one or more synchronized copies of a production database to protect Oracle data from failures, disasters, human error, and data corruptions while providing high availability for mission critical applications.

What is Data Guard configuration?

The VALID_FOR attribute enables you to configure destination attributes for both the primary and the standby database roles in one server parameter file (SPFILE), so that the Data Guard configuration operates properly after a role transition.

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.

How does Oracle Data Guard work?

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. Data Guard maintains these standby databases as transactionally consistent copies of the production database.

What is a Data Guard?

Data Guard. Data Guard provides the management, monitoring, and automation software to create and maintain one or more synchronized copies of a production database to protect Oracle data from failures, disasters, human error, and data corruptions while providing high availability for mission critical applications.

What is Data Guard in Oracle?

Oracle Data Guard is a feature of the Oracle Relational Database Management System (RDBMS). It helps to establish and maintain secondary standby databases as an alternative repository to produce primary databases.

What is Data Guard replication?

In Oracle Data Guard, a data replication resource is enabled when the protection group is activated in the cluster. Consequently, in Oracle Data Guard, in a cluster in which the protection group is deactivated, the data replication status appears as unknown.

What is Oracle Data Guard broker?

The Oracle Data Guard Broker is a feature of the Oracle database that consists of two client interfaces (OEM and DGMGRL) and the Oracle Data Guard Monitor (DMON) process. The Oracle Data Guard OEM and DGMGRL interfaces allow you to monitor and manipulate the configuration.