Oracle Data Guard

Oracle Data Guard Concepts

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..Click on the above link to read more and to become a Oracle DBA.

Standby Database Types

A standby database is a transactionally consistent copy of an Oracle production database that is initially created from a backup copy of the primary database.Click on the above link to read more and to become a Oracle DBA.

Data Guard Operational Prerequisites

All members of a Data Guard configuration must run an Oracle image that is built for the same platform. Click on the above link to read more and to become a Oracle DBA.

Standby Database Directory Structure

The directory structure of the various standby databases is important because it determines the path names for the standby datafiles, archived redo log files, and standby redo log files. Click on the above link to read more and to become a Oracle DBA.

Preparing the Primary Database for Standby Database Creation

Before you create a standby database you must first ensure the primary database is properly configured. Click on the above link to read more and to become a Oracle DBA.

Step-by-Step Instructions for Creating a Physical Standby Database

You can use any backup copy of the primary database to create the physical standby database, as long as you have the necessary archived redo log files to completely recover the database. Click on the above link to read more and to become a Oracle DBA.

Logical Standby Database

You create a logical standby database by first creating a physical standby database and then transitioning it to a logical standby database. Click on the above link to read more and to become a Oracle DBA.

Redo Transport Services

Redo transport services control the automated transfer of redo data from a database destination to one or more destinations.Click on the above link to read more and to become a Oracle DBA.

Log Apply Services

Log apply services automatically apply redo to standby databases to maintain synchronization with the primary database and allow transactionally consistent access to the data. Click on the above link to read more and to become a Oracle DBA.

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