Migrating server from Exchange 2003/Windows Server 2003 to Exchange 2007/Windows Server 2008

Posted on 2010-01-08
Last Modified: 2012-05-08
We want to migrate our Exchange Server from 2003 to 2007.  We're also migrating from Windows Server 2003 to 2008.  This box is also a domain controller.

Can someone provide the best process to follow to accomplish these migrations?
Thanks much for your help.
Question by:cclausen1
    LVL 32

    Accepted Solution

    There is no inplace upgrade from 2003 to 2007. You will have to have another server too and will be in a coexistence for some time.
    Nitin Gupta
    LVL 32

    Expert Comment

    LVL 2

    Assisted Solution

    My recommndations: migrate to exchange 2007 on a new server (build a new server , install exchange 2007 join in mixed mode with exchange 2003, move all stores to new server , test integrity and few mailboxes connectivity and than remove exchange 2003 from old box). Keep the old box as domain controller and keep the exchange 2007 server as a memeber server (dont make it a domain controller). For the 2008 upgrade, once again unless you have a backup domain controller along with all the roles (GC, RIP etc) assigned , do a move upgrade not inplace.
    LVL 24

    Assisted Solution

    Buy a new server, 64bit capable with 2008 64bit OS.

    Add it to the domain as a member server.

    Install exchange 2007 prerequisites and then run 2007 setup.


    Author Closing Comment

    Together, the three recommendations present a thorough solution.

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