Re: [linux-lvm] Automatic snapshot system?

[Joe Thornber <thornber@btconnect.com>]

On Thu, Nov 29, 2001 at 02:42:58PM -0600, Jason L Tibbitts III wrote:
> >>>>> "p" == petro  <petro@auctionwatch.com> writes:
> 
> p> We have a home-brewed perl script called from cron that does a
> p> snap, rsync's out the data, then releases the snapshot.
> 
> Interesting, but not quite what I'm trying to do.  Essentially I'd
> like to use snapshots as a sort of quick online backup to guard
> against users nuking their files.  Of course we do backups nightly,
> but restoring from a snapshot is much quicker than messing with tapes.
> 
> So, depending on how snapshots actually work and the performance
> penalty they incur and various other bits, I was thinking of doing a
> daily or twice-daily snapshot, keeping them around for a few days,
> then deleting them.  But that entails having around 100 snapshots
> sitting around, and I don't know if there are performance problems
> with doing that.

It's a nice idea, but with the current implementation there's no way
I'd want 100 snapshots of the same origin hanging around.

- Joe