This is for an exchange move that we have slated for this weekend, and I need to make sure all my ducks are in a row....
Currently we have one Exchange 2000 server, post sp3, we’ll call "Exchange1" that is limping/choking along with all our mailboxes on it. We have a new server already configured with Exchange 2000 post sp3 destined to replace it that we’ll call "Mail2".
At the moment we have installed Server 2000 and exchange 2000 post SP3 fixes on the new server Mail2. We already migrated two mailboxes over to this server from Exchange1 and everything seems to be working fine (except OWA...which is understandable given our secure site still points to the older server...). This weekend we plan on migrating the other 300 users to the new server. Our plan for this is to MOVE all the users mailboxes (under exchange options, through AD users and computers for each OU) to Mail2, and then do a proper uninstall of exchange 2000 from the Exchange1 server to remove it from Active Directory, leaving Mail2 as the only email/instant messaging server on the network.
We’ve done some research and it was mentioned to us that we should make sure that we change the Offline address book setting and public folders (which are already being 'replicated' to the new server) and that we should also change the Recipient Update Services (RUS) to point to Mail2. What else should be considered when doing a 'move' of this manner? ie, are there other settings that will need be redirected to the new server inside of Exchange system manager or AD or .... ? We have the firewall and DNS (mx) entries covered (at least I think we do!!). Will all other settings automatically be redirected to the new server once the old server is successfully uninstalled/removed from the network, even if we forget to manually redirect any settings?
It has also been suggested that instead of "moving" mailboxes to a server with a new name/ip address, we should do an "exchange /disaster_recovery" install instead, and use the same server name and IP as the original Exchange1 server. Due to issues we are currently having with the old server, I am wary of using my backups of this old Exchange1 server if I don't have to....and I really, really, really don't want to if I can avoid it.
To recap: When moving a high volume of mailboxes to a new server (exchange 2000 post sp3 to faster server, but same build out), using the MOVE command, and then UNINSTALLing exchange from the old server (through proper means), what other services do I need to redirect to the new server besides the RUS, Offline Address Book, and public folders (which is already being replicated)? Again, due to my concern over poor backups of the old server, I am not comfortable with doing a /disasterrecovery option of exchange and would prefer just to MOVE the mailboxes, since this option seemed to work for our previous IT Manager (no longer with the company).