Now this may be a loaded thread, but I wanted to see if there were any suggestions on best practices for upgrading my current domain controllers to new 2008 machines. Currently I have about 20 servers, some of which are 2003 and some of which are 2008. I have 2 2003 DC's currently and have 2 brand new 20087 machines ready to be deployed as new domain controllers. One of my current DC's is DNS and DHCP as well, WINS is not in use.
So, what I am wondering - are there any issues that would arise from the switchout? I've done a 2000 - 2003 upgrade in the past, and had ran into some odd issues at that time. Any suggestions to make the transition as easy as possible would be greatly appreciated. I have no issues with haveing all 4 servers running in parallel for some time