On 2016-01-21 09:20, dbonde+forum+rsync.lists.samba....@gmail.com wrote:
I run a rsync job transferring about 45 million files/approximately 1.8
TB data (a Mac OS X Time Machine backup) over a 100 MBit connection.
I use rsync 3.1.1 from MacPorts (I first tried the built in rsync,
version 2.6.9, since it has a Mac OS X specific cache parameter, but it
ran out of memory) with the following parameters
% rsync -HzvhErlptgoDW --stats --progress --out-format="%t %f %b"
/source/ /destination/
Well, after some examination I found at least one problem with this
transfer (that is still running): hard links are not preserved:
This is how a certain file looks at the source where it is backed up on
several locations using hard links:
source volume:
zsh-% ls -i "/…/backups/2011-06-23-040258/Pictures/DSCF0748.JPG"
9236871 /…/backups/2011-06-23-040258/Pictures/DSCF0748.JPG
zsh-% ls -i "/…/backups/2010-12-18-070445/Pictures/DSCF0748.JPG"
9236871 /…/backups/2010-12-18-070445/Pictures/DSCF0748.JPG
destination volume:
zsh-% ls -i "/…/backups/2011-06-23-040258/Pictures/DSCF0748.JPG"
20765913 /…/backups/2011-06-23-040258/Pictures/DSCF0748.JPG
zsh-% ls -i "/…/backups/2010-12-18-070445/Pictures/DSCF0748.JPG"
704428 /…/backups/2010-12-18-070445/Pictures/DSCF0748.JPG
As you can see the inode number is the same on the source volume while
it is completely different on the destination volume.
Why are my hard links not preserved? I thought the purpose with -H was
to transfer the hard links rather than the file itself.
--
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