CAUTION Service Disruption

A main database restore requires a shutdown of each main database and main server in the NFM-P system, which causes a network management outage.

You must perform a database restore only during a scheduled maintenance period, and contact technical support before you attempt to restore a main database.

You can restore a main database using a backup copy.

In a redundant system, you must perform one or both of the following to regain main database function and redundancy, depending on the failure type.

• Restore the primary main database.

• Reinstantiate the standby main database.

Both operations are required after a primary database failure. After a standby database failure, no restore operation is required, but you must reinstantiate the primary database on the standby database station to restore redundancy. You can use the NFM-P client GUI or a CLI script to reinstantiate a database.

Note: In a redundant system, you can restore a main database backup only on a primary database station. To restore a database backup on a station other than the primary station, you must do the following on the station before you attempt the restore:

• Uninstall the main database, if it is installed.

• Install a primary database on the station.

In a redundant system, you can reinstantiate a database only on a standby database station. To reinstantiate a database on a station other than the standby station, you must do the following on the station before you attempt the reinstantiation:

• Uninstall the main database, if it is installed.

• Install a standby database on the station.

Note: A main database restore requires that the Oracle home version matches the Oracle version of the database backup. If you do not reinstall the Oracle software, for example, when you restore on the same station, the restore procedure is unchanged. If you reinstall the Oracle software, for example, when you restore on a new station, and the database backup was created while an NFM-P service pack that upgrades the Oracle software was applied, you must raise the Oracle version to the backup level before you restore the database; see How do I restore the primary main database in a redundant system? .

See How do I restore a standalone main database? for information about restoring a standalone main database. See How do I restore the primary main database in a redundant system? for information about restoring a redundant main database. See How do I reinstantiate the main database from the client GUI? and How do I reinstantiate the main database from a CLI? for information about reinstantiating a primary main database on a standby database station.