(2013-11-12)
Problem
When you run an incremental
robocopy /mir, if ACLs have been changed on files which otherwise don't change, the changed ACLs are not reflected on the destination drive.
Solution
> ROBOCOPY /Mir <Source> <Target>
> ROBOCOPY /E /Copy:S /IS /IT <Source> <Target>
The first Robocopy command above will copy data and security for files that have been updated, and the second Robocopy command will refresh file security for all files, without copying any file data.