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lachlan_mcintyr's avatar
lachlan_mcintyr
Level 2
15 years ago

Oracle database backup size seems to small

Hi guys.

I have finally got my oracle database backing up with Backup Exec.

When I browse my selection list, all the databases selected are around 20GB. But if I do a test backup of just the databases, the backup comes up to around 4GB.

Any ideas why? The backup completes successfully.

It is an Oracle database running on a redhat server with the oracle agent.

Perhaps I might do a test restore and see what file sizes they come out to.
Agent for Oracle on Windows or Linux Servers
Agents
Backing Up
Backup and Recovery
Backup Exec

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  • RahulG's avatar
    RahulG
    Level 6
    15 years ago
    are you backing up to tape of backup to disk ?
    Make sure you have the installed all the patches and hotfixes
    refer the following document http://support.veritas.com/docs/310325
    During a backup operation, the amount of data that is backed up may not equal the size of the Oracle files that are on the disk. This behavior is normal. Backup Exec backs up the selected data files as well as a copy of the control file
  • lachlan_mcintyr's avatar
    lachlan_mcintyr
    Level 2
    15 years ago
    Hi.
    We are backing up to tape.
    I have everything selected and its only backing up around 4GB, where as the files in the selection is around 20GB which makes me worried.

    Will install this patch and see how I go
  • RahulG's avatar
    RahulG
    Level 6
    15 years ago
    Also check the size on the actual storage location on the server , as the selection list might show inaccurate size ..
    And do check what compression you are getting by going to the properties of the tape ...