Oracle Data Guard configuration overview

Oracle Data Guard is Oracle’s high-availability solution. In an Oracle Data Guard configuration, two database servers run at the same time. The active one is called the primary database. The second one is called the standby database.

The main tasks in setting up an Oracle Data Guard configuration are as follows.

Install the IMPAX Database Server following the procedures in the appropriate installation guide: IMPAX 6.5.1 AS300 Installation and Configuration Guide or IMPAX 6.5.1 AS3000 Installation and Configuration Guide.

This will be the primary database.
On AS3000 machines, install the IMPAXoradg package as described in Installing the Oracle Data Guard package on a Database Server. When installing an AS300, select the optional MVForadg component.
Back up the database on the primary database, then restore it onto the standby server, using one of the following methods:
- RMAN backup and restore
  or
- Cold backup and restore
This initially configures the standby server.
To ensure that the database servers are backed up and that any archive logs no longer required are cleaned up, configure RMAN backups on the primary and standby servers.