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The role of FSMO's and GC'c in Exchange 2007

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  • The role of FSMO's and GC'c in Exchange 2007

    I have the current setup in my domain now:

    2 DC's
    server - Holding no roles besides AD
    Server1 - Holding all FSMO roles and GC role

    My Exchange 07 server points to both DC's for directory information but points to server1 for the global catalog info. When I reboot server1 Exchange loses its connectivity, can't send or receive and "transient" errors begin to appear in the event log.

    What roles, if any, can I transfer to the other DC so that Exchange operations will continue to run in the event any of the the DC's have to be rebooted?

    Thanks

  • #2
    Re: The role of FSMO's and GC'c in Exchange 2007

    Leave the FSMO roles as they are but make Server a GC as well as server1. As long as you have a single domain/forest this won't present any problems.

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    • #3
      Re: The role of FSMO's and GC'c in Exchange 2007

      I have experience this same problem, my second DC is a GC yet when I reboot my PDC, Exchange 2007 complains bitterly, whats up with that?

      AM

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      • #4
        Re: The role of FSMO's and GC'c in Exchange 2007

        There is nothing that you can do.

        Exchange will hook on to a specific global catalog domain controller for its functionality. When that GC/DC goes away, Exchange does not go looking for another GC/DC for approximately 35 minutes. The only way that you can force Exchange to look for another GC/DC is to restart the services. You will not remove the error messages.

        If you only have two domain controllers then both should be GCs - Exchange only talks to GCs, it does not talk to domain controllers that are not GCs.

        You could try specifying a domain controller in Exchange, but that is not something I would recommend. Your best option is to not reboot the domain controllers unless necessary, and to ensure that they reboot as quickly as possible. Most of my domain controllers will go round in less than 90 seconds.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
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        Sembee is a registered trademark, used here with permission.

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