I have 3 windows 2008 servers. I have a 400gb folder sitting on server 1 that I want to replicate between all 3 servers. I took this folder and copied it to an external drive and the copied the folder from the external drive to server 1 and 2. However, once I setup DFS, DFS was trying to push the entire 400gb to server 2 and server 3 even though all of that data was already there. Microsoft told me that it was because I did a copy and paste of the folder. I guess it did something like changed the signature on the files and therefore DFS saw the files as different instead of as the same. I just wanted to check and see what the proper procedure is to copy this folder to the other servers. I can't wait for 400gb to replicate over slower wan links. I think Microsoft said I could try using robocopy which will not change the file signatures? We have 3 2008 r2 servers.