As I mentioned in the title, I need to install Exchange 2010 on a 2008 server to upgrade Excgange 2003 server currently running on a windows 2003 server.
I have AD-DS on 2008 enterprise server with a replica on 2003 server. The Exchange 2003 is runnung on a 2003 server box. I need to upgrade it to a Exchange 2010 on a new 2008 server.
1- Can I install Exchange 2010 server on the new box in a way that I can leave the data (emails) on the old server for a short while?
2- I am asking the question 1 in case at the end I find the exchange service is down after full upgrade. I mean tranferring that mailbox data onto the new server.
3- Let's assume my domain is ABCD.ORG, the server 2003 holding Exchange 2003 is A123, and the new 2008 server for exchnage 2010 is called B456. How can I test the working status of the upgraded exchange at the end. Should I turn off the exchnage service on A123?
4- What other chnages are needed besides the setup on users Outlook setup?