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We have a Samba share to which I am copying files with robocopy /mir. Problem is the next time I try and sync that with robocopy /mir it copies all files again even though they haven't changed. I can't see why robocopy should be detecting all these files as changed when they haven't been.

Any ideas?

Thanks, Nick

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Check if the times matches with the local one for the remote file after the first copy run. – Sven Jan 31 '13 at 17:17
Yep file times match but directories are replaced with the time of the copy. – NickC Jan 31 '13 at 19:45
Now found a fix for that /dcopy:T but robocopy still detects all as Modified. – NickC Jan 31 '13 at 20:15
Even checked permissions and they are the same, except for the 'Inherited from' description which is slightly different. – NickC Feb 12 '13 at 16:43

If the original folder is formatted NTFS and the destination is EXT3 or EXT4 try the option /FFT (assume FAT File Times (2-second granularity)). NTFS and EXT* record time with different precision and that throws off the time match in robocopy.

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Tried that but no difference. Currently using '/FFT /DCOPY:DAT /MIR' but all files still detecting as Modified – NickC Mar 2 '13 at 12:26

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