On Thu, Dec 21, 2006 at 03:37:30PM -0500, Troy Davis wrote:

> I've been using BackupPC for quite a while, and recently started  
> running low on disk space. We've got a 2TB NAS device that I'd like  
> to use as a destination for BackupPC's data. I've got it setup to  
> mount on boot via CIFS in fstab, and I can read and write data to the  
> NAS. But for some reason, when I copy the "pc" directory to the NAS,  
> make a symbolic link in its place and restart BackupPC, backups fail  
> very quickly (within 2 minutes). Unfortunately I'm not seeing any  
> diagnostic output in the logs. I can't even access the logs, once the  
> pc directory is on the NAS, BackupPC complains that it can't read  
> them (through the browser).

I suppose, you cannot use a CIFS FS as the storage for BackupPC since
BackupPC relies on hard links for data storage. Hard links are not
supportef by CIFS AFAIK. You might be lucky with an NFS mount - simply
try the following:

cd /your/nas/share
# check free space
dd if=/dev/zero of=testfile bs=1M count=500
# now check free space - should be 500MB less
ln testfile newfile
# now check free space - should stay the same
ln testfile anotherfile
# now check free space - should stay the same
rm testfile newfile
# now check free space - should stay the same
rm anotherfile
# now check free space - should be 500MB more

HTH,

Tino.

-- 
www.quantenfeuerwerk.de
www.spiritualdesign-chemnitz.de
www.lebensraum11.de

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