Hi, thanks for reply.
> > > Every day (except sunday) a procedure stores in this folder a 120GB file.
> > > The name of the file is the day name.
> > >
> > > So, in a week, i have 6 different files generated (about 720 GB).
> > > Every week the files are overwritten by the procedure.
> > >
> > > I'd like to backup only the newest file, and not all the folder.
> > > The problem is that i suppose i must have a full backup of the folder
> > > (720 GB), because of $Conf{FullKeepCnt} must be >= 1, plus
> > > incremental backup.
...
> > > and so on, for a total of 1440 GB (the double of the effective disk
> > > space needed).
...
> Couldn't you just do daily full backups (with no incrementals) while
> setting $Conf{FullKeepCnt}=1. Then as long as you made sure that
> BackupPC_nightly didn't run in the middle, you would effectively just
> be adding one new backup to the pool each day and later when
> BackupPC_nightly runs you would be erasing the entry from 8 days
> earlier, so you would never have more than 720+120=840 GB in the
> pool. Now this wouldn't be particularly bandwidth efficient since you
> are always doing full rather than incrementals, but it would work...
>
> However, if you really are only trying to backup a single new 120GB
> file every day, I wonder whether you might be better off just using a
> daily 'rsync' cron job. It seems like that would be simpler, more
> reliable, and more efficient.
>
> Also, is each daily file completely distinct from the previous one or
> is just incrementally changed? Because if it is just incrementally
> changed you may want to first rsync against the previous day's backup
> to reduce network bandwidth.
My BackupPC is running on a VIA processor, max MB/s : less than 5 :-(
So, backup 840 GB each time is not the best solution ...
(this is the reason i did not configure the backup as you suggest)
Anyway, each daily file is quite similar to the each other, so rsync
(or custom script) should be the better way to to the job.
Regards
M
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