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What is the difference between Oracle 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 and provides data availability and protection while Active Data Guard is an extension of Oracle Data Guard and improves the production database performance for critical transactions.
What is the difference between Oracle RAC and Data Guard?
so the difference between the two is that rac is highly available whereas the dataguard ensures data integrity. Since if the one oracle instance in rac has problem, then a restore will be inevitable. no. If one node goes down, the other node will take over for it.
What is meant by 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 Oracle Active Data Guard?
Oracle Data Guard is an extension to the Oracle RDBMS that helps to establish and maintain secondary standby databases as alternatives to the production primary databases. But, Active Data Guard (Oracle Active Data Guard) is an extended Oracle Data Guard functionality in the Oracle 11g configurations.
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.
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.