Hello, I have a small issue. I am doing IT for a multi-user company, and cannot be there to support them 24/7 (I have to go to school, 13 sucks). We have 2 servers, one of them is just standing idle, one of them is acting as a PDC. I will be reinstalling the OS today, and would like to be able to do the following: -User logs in -User is working -PDC fails -User logs out -Selects to logon to second server -Keeps working until I can get the PDC back up again. The way I understand it, this cannot be accomplished with a BDC as a BDC relies on the operation of the PDC and is only used to take stress from the PDC. I was thinking of setting the second server up as a realm, and using rsync to sync the files between the 2 servers, or something like that. Suggestions would be great. Thanks, Adam