BackupPC-users

Re: [BackupPC-users] 2 cpool files with same checksum, different (compressed content) but same zcatt'ed content?????

2008-10-31 11:06:05
Subject: Re: [BackupPC-users] 2 cpool files with same checksum, different (compressed content) but same zcatt'ed content?????
From: "Jeffrey J. Kosowsky" <backuppc AT kosowsky DOT org>
To: backuppc-users AT lists.sourceforge DOT net
Date: Fri, 31 Oct 2008 11:03:01 -0400
Holger Parplies wrote at about 12:25:08 +0100 on Friday, October 31, 2008:
 > Hi,
 > 
 > Jeffrey J. Kosowsky wrote on 2008-10-30 23:16:05 -0400 [[BackupPC-users] 2 
 > cpool files with same checksum, different (compressed   content) but same 
 > zcatt'ed content?????]:
 > > [...]
 > > I found 2 files in my cpool that have the same checksum (one is _0)
 > > but 'cmp' to different values. However, when I zcat them, they have
 > > the same value. I thought that (lossless) compression was a 1-1
 > > mapping?
 > 
 > have you got checksum seeds enabled? This could be an artefact of your NFS
 > problems leading to one copy without checksum seeds and one with them, maybe?
 > 
 > Regards,
 > Holger

Is there a (reasonably easy) way of identifying which ones have the
rsync checksum seed and which ones don't???

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