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Running two Exchange Servers on one domain

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  • Running two Exchange Servers on one domain

    Hi,

    We have a client who wants to host a disaster recovery site for their email, data and third party applications. They have not got the budget for dedicated high speed data lines between the two sites ( 250 miles+ ), and therefore live replication, so they are looking at alternative options.

    One of these is have an Exchange server at their remote site, to which a backup from their live Exchange server could be restored onto, in the event of the Live server being unavailable.

    Is it possible for this to happen, or is it easier to just have a Domain Controller at the remote site, to which we re-name, re-IP and install Exchange onto if required ??

    Your thoughts are appreciated

    Regards

    John

  • #2
    Re: Running two Exchange Servers on one domain

    The most that you will be able to do is have a machine sat in the other site turned off.
    You could locate a separate domain controller there, but that is about it.
    You cannot have Exchange already installed.
    You cannot rename the domain controller.

    In the event of a failure you would seize the roles then the reset the Exchange server's computer account. Then install Exchange with the DR switch. However it is a one time thing. Once done, the original server cannot be used, so would only be suitable for a total loss scenario.

    If you want something to take over and then fail back then it is going to have to be third party software.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

    Comment


    • #3
      Re: Running two Exchange Servers on one domain

      Thanks for the reply.

      Could I have a server at the remote site ( not a domain controller ), and if disaster strikes and the Exchange server dies, I travel to the remote site and rename that server, install Exchange, Service Pack where required and then restore the tape from the dead Exchange server.

      Can a non-domain controller be left switched off, or will it still 'tombstone' ?

      Live replication is just not an option due to the cost between the two sites.

      Thanks

      Comment


      • #4
        Re: Running two Exchange Servers on one domain

        As you have to join the machine to the domain, the issue of a problem with the machine account simply doesn't exist. You would need to have a domain controller there, which would mean careful setup of AD Sites and Services, but that is all.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

        Comment

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