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I have started using rsync to back some data on my mac to an external HD. It works really well, but I have noticed something odd. Every time I run the command, I get a list of files that haven't been modified or even opened since the the last backup. Why might this be?

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Can you post the command you issue? – superuser0 Apr 12 '13 at 16:43
Also, what filesystem are you backing up from and to? Show the output of stat on a file that is being backed up again even though it hasn't changed (both the old file and the backup: run rsync -n). – Gilles Apr 12 '13 at 22:14
The command is rsync -rv ~/dir "/Volumes/G-DRIVE MOBILE/" running stat on one of the original files returns 234881026 81492604 -rw-r--r-- 1 user staff 0 188267 "Apr 13 07:58:20 2013" "Mar 6 11:12:31 2013" "Mar 6 11:12:37 2013" "Mar 6 11:12:31 2013" 4096 368 0 path/to/file Running stat on the copy returns 234881028 7896469 -rw-r--r-- 1 user staff 0 188267 "Apr 13 08:06:08 2013" "Apr 13 07:58:20 2013" "Apr 13 07:58:20 2013" "Apr 13 07:58:20 2013" 4096 368 0 path/to/file. Local filesystem is hfs, local, journaled; external HD is hfs, local, nodev, sosuid, journaled. – John Aten Apr 13 '13 at 13:12

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