Migrating from Exchange 2003 to Exchange 2010
Posted on 2011-04-19
Hello all Experts.
Its my first Exchange 2003 - 2010 migration, and I have a doubt regarding some concepts adopted by HUB transport.
Let me show you the environment:
Exchange 2003 --> 2 Backend Servers and 1 Front'end Server.
Exchange 2010 *NEW* --> 2 CAS/HUB servers and 2 Mailboxes DAG servers.
Here are my concerns and questions:
- I am doing this in the same organization.
- My main goal is to keep the 2003 structure working and being the "Front" of my exchange organization, until I have the 4 servers installed. After this, I will start to move mailboxes...
- I have already installed the CAS server and I am right now to install the HUB transport.
My question in this phase is:
If I just go ahead and install the HUB transport role, not modifying anything on my structure... The External/Internal mailflow will be inpacted?
I am planning to arrange all of that, regarding of Roles installations, and after that, move the Mailflow to the 2010 structure... Is it OK?
I am asking this because I am afraid that messages comming to the 2003 structure may be threated by the new HUB, and something get lost. Maybe I am underestimating the HUB transport?
If I just install the HUB transport, something is gonna happen to ActiveSync on 2003 structure? I need to change the ActiveSync Authentication to NTLM right now, or just when I "Turn the key"?
So.. I think that these are simple questions.
I hope you all can help me on clarifying that.