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Re: I backup my files: (Daily ...)

by DrHyde (Prior)
on Jun 06, 2007 at 09:19 UTC ( #619558=note: print w/replies, xml ) Need Help??

in reply to I backup my files:

... although of course I *used* to back them up too late. An intelligent person only makes that stupid mistake once though, and these days I have no choice but to take regular backups - as the maintainer of rsnapshot I have to "eat my own dog food".

It's worth noting that I also *test* my backups about once a week, and I pay attention to the logs that are generated every day. If you don't do those things then you don't have backups, you merely have hopes.

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Re^2: I backup my files: (Daily ...)
by gloryhack (Deacon) on Jun 07, 2007 at 03:29 UTC
    First, thanks very much for rsnapshot, which absolutely wrawks.

    Second, and as important: How do you test your backups? I gotsta know!

      I pick a few files at random and check to see if I can read them from the last few days backups, and that they have the correct mode, owner, etc.

      Actually, I have a script that does that for me and just emails me the results. Occasionally it tests a file that is in the backups and no longer on the machine being backed up (or vice versa, or a file that has changed etc) in which case the script moans VERY loudly and I make sure I take the time to check that everything really is OK and it's not an error.

      Doing that is sufficient for file backups like what rsnapshot does. People whose backups can be used for a "bare metal" restore, inlcuding things like disk layouts, boot sectors and so on, should test their backups by periodically doing a full restore to their spare hardware.

      BTW, I very strongly recommend Curtis Preston's book Backup and Recovery. The link is to a mini-review I wrote.

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