Does rsync detect file corruption?
Daniel Carrera
daniel.carrera at theingots.org
Sun May 24 14:53:01 GMT 2009
But there is no way to distinguish between file corruption and a
legitimate change. All you can do is keep old backups for a few days or
weeks and hope that you detect the file corruption before the backup
rotation deletes all the good copies.
Christian Hecht wrote:
> This can minimize the risk, but if you don't need the corrupted file
> actually, you can't detect that it is corrupted.
>
> The corrupted file will be copied to a newer backup folder.
>
> If you delete the old backups due to rotation, at any time the backup is
> worthless because it only contains the corrupted copy.
>
> So some mechanism is needed to detect corrupted files before copying to
> the backup.
>
> Best regards
> Christian
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