Nortel Networks Standard MCP 1.1 FP1 (02.02) manual Comparing backup and recovery methods

Nortel Networks Confidential		Security and Administration 73
	Table 10 Comparing backup and recovery methods
	Export/Import method	RMAN method
	Individual data files cannot be	Individual data files can be
	recovered	recovered
	Longer recovery time	Shorter recovery time

Backups should be scheduled during off-peak hours. The default time is 2:00 a.m.

If a backup fails, the log files display the probable cause of the failure and any available explanatory information. To view the log files, double-click a failed job displayed in the OEM Console. See also “Monitoring backups” on page 20.

CAUTION

To avoid risk of data loss, always backup data to external media and use consistent and regular backup procedures.

This section contains the following backup procedures:

•“Backing up parameter files” on page 73

•“Backup job setup” on page 74

•“Modifying a scheduled backup job” on page 82

Oracle Enterprise Manager backups

Use the procedures listed in this section to schedule backups. This section explains the generic method for backing up the Database Module using the Oracle Enterprise Manager (OEM).

Similar methods are used to schedule any kind of backup job, the only difference being the script name and the parameters used.

Backing up parameter files

The following procedure is necessary to backup database parameter files on the primary and secondary databases. The (.keep) versions are created in case the original file is corrupted.

Note: Execution of this backup procedure is required only when the version of the Oracle database changes.

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