[Gllug] Tape backups

[James Hawtin]

On Mon, Feb 16, 2009 at 09:10:21PM +0000, t.clarke wrote:
> Our approach, on a relatively modest database, is to copy twice daily the whole
> unmounted filesystem  (raw dd) to another disc partition, remount and carry on,
> and then backup the disc copy to tape.  This keeps downtime to a matter of
> seconds.  The tape-copies are re-read against the disc and compared to ensure
> that the tape has been written OK.  On the few occasions when I have need of
> some historic info the tapes have always been readable.
> As the database is quite small, we also whizz the copy overnight to another box
> with a DVD writer and write an ISO file as well.

Do you make use the of lvm snapshot facility to minimise the ammount of time
your filesystem is unavailable?

James
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