RMAN Backup Verify (SAP Library - SAP Database Guide: Oracle (BC-DB-ORA-DBA))

RMAN Backup Verify

Use

The BRBACKUP and BRRESTORE functions for verifying backups are also supported for backups with the Oracle Recovery Manager (RMAN).

Features

BRBACKUP can verify online or offline RMAN backups immediately.

A delayed verify with BRRESTORE can only be performed on the database host, when the database is mounted or open.

A verify with DBVERIFY is not supported for RMAN backups, since the Oracle block consistency is checked when the backups are made.

Activities

RMAN verifies savesets with the VALIDATE command, as follows:

RMAN reads the savesets from the backup medium to check their readability.
RMAN checks the internal consistency of the data in the savesets using check sums. No binary comparison is made with the originals.

Recommendation

We still recommend that you verify backups as often as before, that is, at least once in each backup cycle and every week if possible.