KnowledgeBase

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====== Robocopy - Mirroring ======
Default retry count is 1 million and default wait is 30 seconds.  I recommend reducing that to a realistic level (i.e. 2 retries and 5 or 10 seconds for the wait).  If you're trying to mirror drives, this might be simpler than excluding files and directories.

Copy the data over.<br />
''robocopy <source> <target> /MIR /R:2 /W:3''

Refresh file security for all files, without copying any file data.<br />
''robocopy <source> <target> /E /COPY:S /IS /IT /R:2 /W:3''

Replicate data (/MIR) and security (/SEC) for changed files, and update just the security (/SECFIX) for unchanged files.<br />
''robocopy <source> <target> /MIR /SEC /SECFIX /R:2 /W:3''

===== File Shares? =====
If these are file shares you are migrating to a new drive, follow these additional steps.

  -. Run**regedit**
  -. Browse to the following key:<br /> ''HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Shares''
  -. Edit the**Path** for each of the moved shares to the new location
  -. Restart the**Server** service

===== References =====
  * [[http://blogs.technet.com/b/filecab/archive/2008/07/31/robocopy-mir-switch-mirroring-file-permissions.aspx]]
  * [[http://support.microsoft.com/kb/125996]]



-- Main.FredPettis - 2012-06-20