Here is our current setup:
Exchange 2000 Native Mode Organization
All Exch2k servers running SP3
One Admin Group
12 Servers within the Admin Group representing a central office and the rest remote offices
Multiple Routing Groups and Routing Group connectors
Our AD was W2K up until a week ago when we ran /adprep /forestprep & /domainprep then introduced our first 2 W2k3 DC's
Since most of the Exchange Servers are running on older harder plus the fact that we want to upgrade to Exch2k3, I know need to put a project plan in place to list the tasks needed for a successfull upgrade to Exch2k3. We would like to perform some consolidation back to our hub office. We've purched two new servers which are still in the box. These two new servers will reside in the hub office. Each remote office has a T1 coming back to the hub. I would imagine the easiest thing to do is:
Prepare AD schema for Exch2k3 by running /forestprep and /domainprep
Build out the two new servers with W2K3 then install Exch2k3 into the single admin group
We have 40gb's worth of PF's, so just use pfmigrate to add the new E2k3 box as a replica
Start process of identifying which connectors have the current hub server as the preferred bridgehead, then add the new E2K3 servers as bridgeheads while removing the current server then restarting the MS Routing Engine Service
Move Mailboxes from current hub server to newly deployed Exch2k3 servers
With respect to the remote sites, is a T1 acceptable for across the wire MAPI? We're not running Outlook 2003 (Cached Mode) but we're still on Outlook 2002. I was going to tell management that we must upgrade to Outlook 2003 at the remote sites first. Once that is done, it should be pretty simple by basically moving the mailboxes at night to the new Exch2k3 hub servers. The great thing is, all the servers are in the same Admin Group so we don't have to worry about cross-admin group moves and all that comes along with that.
Any chance someone has had to do this before and has an old MS Project Plan I could reference?