most of the files that are in the backup you want to delete may be in the
pool and still depend on another more recent backup. the fact that backuppc
shows a backup as 2Gb or whatever doesnt mean that it is occupying 2Gb on
disk, just that the files WOULD be 2Gb if they were in some other
directory. the pooling of files in backuppc could cause you to have almost
the same disk usage even after deleting 10Gb worth of backups because
really, it would just delete a bunch of hard links which are pretty small.
on most filesystems they are the size of 1 cluster which is often 4k.
if you have manually deleted the host's directory from the pc/ directory and
run nightly, all the 'extra' files should have been deleted.
On Dec 13, 2007 3:16 PM, John Pettitt <[EMAIL PROTECTED]> wrote:
> Rob Ogle wrote:
> > Thanks!
> >
> > I changed those settings, restarted the box, and ran BackupPC_nightly.
> > My directory size hasn't changed. Should I just wait a few days to see
> if
> > the magic happens on it's own?
> >
> >
> >
> >
> Unless your machine changes *a lot* each week the directory size won't
> change much. This is becasue backuppc pools the files. When a new
> full backup happes if the file already exists it just gets linked taking
> no additional disk space - this is why the directory doesn't grow by a
> huge amout with each full. The flip side of this is when a full gets
> deleted only the files that were unique to that full actually get
> removed from the disk - if the same file is used in another full or an
> incremental it stays in the pool and the disk space used is not recovered.
>
> So unless this weeks full is radically different from last weeks full
> you're not going to see a big space drop when last weeks goes away.
>
> John
> > -----Original Message-----
> > From: Les Mikesell [mailto:[EMAIL PROTECTED]
> > Sent: Thursday, December 13, 2007 3:22 PM
> > To: [EMAIL PROTECTED]
> > Cc: [email protected]; 'John Pettitt'
> > Subject: Re: [BackupPC-users] Deleted Host
> >
> > Rob Ogle wrote:
> >
> >> Ok. So...
> >> If I want to keep one full per week and increment once each day between
> >> fulls- is this what my settings should be?
> >>
> >> FullPeriod: 6.97
> >> FullKeepCnt: 1
> >> FullKeepCntMin: 1
> >> FullAgeMax: 365
> >>
> >> IncrPeriod: 0.97
> >> IncrKeepCnt: 8
> >> IncrKeepCntMin: 8
> >> IncrAgeMax: 1
> >> IncrLevels: 1
> >>
> >
> >
> > You'll end up with overlapping fulls, which will probably happen in any
> > case since the old one wouldn't be deleted until the new one completes.
> > I think that 8'th day of incrementals will keep the old one around
> > one more day. Space-wise it probably doesn't matter as long as it is
> > gone before the next full happens.
> >
> >
>
>
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