Re: [BackupPC-users] 2 cpool files with same checksum, different (compressed content) but same zcatt'ed content?????
2008-10-31 07:27:26
Subject: |
Re: [BackupPC-users] 2 cpool files with same checksum, different (compressed content) but same zcatt'ed content????? |
From: |
Holger Parplies <wbppc AT parplies DOT de> |
To: |
"Jeffrey J. Kosowsky" <backuppc AT kosowsky DOT org> |
Date: |
Fri, 31 Oct 2008 12:25:08 +0100 |
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
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