Re: [BackupPC-users] Filesystem corruption: consistency of the pool

Robin Lee Powell wrote at about 11:20:26 -0800 on Thursday, December 9, 2010:
 > On Thu, Dec 09, 2010 at 09:53:25AM +0100, martin f krafft wrote:
 > > also sprach Jeffrey J. Kosowsky <backuppc AT kosowsky DOT org> 
 > > [2010.11.17.0059 +0100]:
 > > > I wrote two programs that might be helpful here:
 > > > 1. BackupPC_digestVerify.pl
 > > >    If you use rsync with checksum caching then this program checks the
 > > >    (uncompressed) contents of each pool file against the stored md4
 > > >    checksum. This should catch any bit errors in the pool. (Note
 > > >    though that I seem to recall that the checksum only gets stored the
 > > >    second time a file in the pool is backed up so some pool files may
 > > >    not have a checksum included - I may be wrong since it's been a
 > > >    while...)
 > > 
 > > I did a test run of this tool and it took 12 days to run across the
 > > pool. I cannot take the backup machine offline for so long. Is it
 > > possible to run this while BackupPC runs in the background?
 > > 
 > > > 2. BackupPC_fixLinks.pl
 > > >    This program scans through both the pool and pc trees to look for
 > > >    wrong, duplicate, or missing links. It can fix most errors.
 > > 
 > > And this?
 > 
 > I don't know about the first one, but BackupPC_fixLinks.pl can
 > *definitely* be run while BackupPC runs.
 > 
 > For serious corruption, you may want to grab the patch I posted a
 > few days ago; it makes the run *much* slower, but on the plus side
 > it will fix more errors.

I would suggest instead using the version I posted last night...
It should be much faster though still slow and may avoid some issues...

 > 
 > OTOH, the errors it fixes only waste disk space, they don't actually
 > break BackupPC's ability to function at all.
 > 

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