rsync - Sep 2009 - "quick check" failed

Hi folks,

We ran 2 mirror jobs using "rsync -av remote:/from /to"
of appr. 700 GByte. Problem: On the second run about 10 or 15
files were copied again, even though we are very sure that there
was no service running which could have changed the files on
remote:/from or on /to. Esp. Samba and NFS were off.

How comes?

The remote host has rsync version 3.0.4. The localhost uses
version 3.0.3. The file system was reiserfs on the remote side,
and xfs on localhost.

Any helpful comment would be highly appreciated


Harri

On Thu, 2009-09-17 at 12:46 +0200, Harald Dunkel wrote:
> We ran 2 mirror jobs using "rsync -av remote:/from /to"
> of appr. 700 GByte. Problem: On the second run about 10 or 15
> files were copied again, even though we are very sure that there
> was no service running which could have changed the files on
> remote:/from or on /to. Esp. Samba and NFS were off.
> 
> How comes?
How should I know?  Perhaps rsync failed to preserve mtimes, or they
were subsequently changed?  If you pass -i, rsync will tell you why it
is transferring each file.

-- 
Matt