On Tue, Jan 26, 2010 at 08:24:06PM -0600, Gerald Brandt wrote:
> > Why expire all of January in the first week of February? That means you
> > only have one weeks history? Why not just tell backuppc to keep 5
> > 'weekly' fulls, which means you will always have the ones you want?
> >
> > > I found a delete script that can do the deletes for me, but is that the
> > > only way? I'd hate to have to parse output to figure out what to delete.
> >
> > Yes, this is the hard part. Sooner or later you will probably need to
> > find a way to expire a specific backup number. I don't think this will
> > really work otherwise.
> >
> > Personally, I don't like this solution either...
> >
> > > BackupPC isn't meant designed to do this stuff, so I may have to script
> > > the whole process. Ugh. My perl "ain't so good".
> >
> > Nope, it isn't... I don't think there is a 'proper' way to delete a
> > specific backup either, but it would definitely require a bit of
> > scripting, and making sure you don't 'mess it up' under any circumstance
> > is harder.
> >
> > So far, I have used two variations:
> > 1) Use the supported keep values (with various values)
> > 2) Keep everything for ever. (Use excessively high keep values to cover
> > at least 10000 backups).
> >
> > I think your main issue is that backuppc can't use block level
> > de-duplication. If it could, you could store all your daily SQL backups
> > with minimal actual storage space consumption. Of course, this would
> > come in handy for plenty of others too :)
> >
> > Maybe someone else will have something more helpful to add.
> >
> > Regards,
> > Adam
> >
>
> I appreciate the help. For now I have a crontab entry that calls a
> bash script every Friday, to perform fulls for the server, and I've
> set $Conf{FullPeriod} to 7.1. That should work for the next while,
> since Jan and Feb's last workday of the month is a Friday.
> I also have a plan for running a full on the last day of the month,
> which is really no biggie. I'll put that in place in a bit.
> Now all I need is a smart backup expire plan, so that by December all
> I have is the last day of the month backups for Jan-Nov, and a regular
> slew of incrementals/fulls for Nov and Jan.
Why are you so strict on keeping _only_ those backups? Why not just keep
some more (which won't cost you a lot of space because of the pooling)?
Or maybe I didn't get the point?
Tino.
--
"What we nourish flourishes." - "Was wir nähren erblüht."
www.lichtkreis-chemnitz.de
www.tisc.de
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