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Oracle Data Guard


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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.
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.Read more about Oracle Data Guard .
Data Guard Operational Prerequisites
All members of a Data Guard configuration must run an Oracle image that is built for the same platform.
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. Read more about Oracle Data Guard
 
Preparing the Primary Database for Standby Database Creation
Before you create a standby database you must first ensure the primary database is properly configured.
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. Read more about Oracle Data Guard
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.
Redo Transport Services
Redo transport services control the automated transfer of redo data from a database destination to one or more destinations.Read more about Oracle Data Guard
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.


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Oracle DBA Tutorial
Introduction
Installation
Oracle Enterprise Manager
Configuring client/server network
Database Instance
Database Storage Structures
DBA Accounts
Managing Oracle Objects
Backup & Recovery Concepts
Database Monitoring