Exchange 2007/ AD 2003 Migration

Posted on 2011-10-04
Last Modified: 2012-06-27
My one customer have small setuo they want to migrate their exchange and active directory servers.

AD is on 2003
Exchange is on 2007

what is the preffered method to go ahead with migration should i move first with AD migration or first on exchange migration.

AD 2008
Exchange 2010.
    LVL 8

    Expert Comment

    Although either way would work id upgrade the AD first then migrate exchange.

    Hope that helps!

    Dave J
    LVL 24

    Accepted Solution

    As mentioned above both way you can do.

    Exchange2007/2010 is tightly integrated with AD

    You install 2008 AD and transfer all the roles to the newly installed server.
    Then change the DNS IP in exchange 2007 and run the command ' /prepareAD'
    After this command you have to make sure your exchange2007 is error free
    configure the new AD IP in exchange2010 network settings (DNS IPs)
    Start Exchange2010 installation
    Move all your mailboxes and Public folders to exchange2010
    Then decommission exchange 2007
    Make sure your exchange2010 is error free


    You can install exchange 2010
    Move all the mailboxes/Public folders to exchange2010
    Then decommission exchange 2007
    Install 2008 AD and transfer all the roles
    Change the DNS IP in exchange2010 server to the newly installed AD
    Then run this command ' /prepareAD'
    Make your new exchange2010 error free

    Note: Be very careful when transferring FSMO roles. Using the Ntdsutil utility incorrectly may result in partial or complete loss of Active Directory functionality.

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