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  • Switching Exchagne servers after a failure

    Hi All!!

    On a Win 2003 server network I had three DC sharing work , one of which was the exch 2003 server ISIS. This was the first mail server installed and after a hardware failure it is now offline and will not be brought back up. I used the write up here using Ntdsutil to remove traces. I also seized the rolls ISIS was preforming on the remainign two DC, and installed Exchange 2003 on what I plan to be the new mail server THOTH. Install went fine, but when I open ESM I still see ISIS listed. How do I remoive this ??

    I also have all the mailbox PST that I exported hrs before the failure, I would like to use that to restore mailboxes, but I am not clear on how the mailboxes will be created in the new Exchange server. I do not see any currently and even when I make a new user and select THOTH as the information store when creating no new mailboxes are created??

    Thanks

  • #2
    Re: Switching Exchange servers after a failure

    What you should have done was a DR install of Exchange on a replacement machine with the same name, after resetting the computer account. That would have got you back to a position close to where you were at the point of failure.

    If you have no backup then personally I would still consider a DR install of Exchange on a temporary system somewhere, so that the unique roles and functionality can then be moved to the new server gracefully. You can then remove that installation using add/remove programs and all trace of the server will be removed from the domain.

    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.

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    • #3
      Re: Switching Exchagne servers after a failure

      Much appreciated. I am actually still working on the original Exchange server, it is removed formthe network. If I was able to get it to a point where I was comfortable using it again, would I have issue bringing it back into the domain, since I used Ntdsutil to remove traces of it and it was ungracefully yanked?? I would think the roles being seized wouldn't be a problem. I'm researching it but since I am in quite a bind I'm lookign to the experts Again thx for the info

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      • #4
        Re: Switching Exchagne servers after a failure

        If the server has been removed from the domain in any shape or form, then you cannot put it back on to the domain. You need to do a clean installation of Exchange, or a DR install of Exchange on a clean build.

        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


        • #5
          Re: Switching Exchagne servers after a failure

          Can you clarify on as you say still working on original server.. Whats the status now , Scenario 1: if you have completely removed the old exchange server information from AD, then you can bring back the old server back again using the same server name and Ip address and installed exchange using disaster recovery switch and apply sp2 for exchange. Then restore the database from backup.

          All the exchange server information is stored in configuration partition of Active directory

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          • #6
            Re: Switching Exchagne servers after a failure

            Have the Exchange Hard Disk Drives failed? You could perhaps connect one to a USB device and copy the mailbox and logs off it. You can then run eseutil against it to repair and to re-run log files. Can't remember the commands but google will tell you.

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            • #7
              Re: Switching Exchagne servers after a failure

              Thanks all. First the mailserver is up and running, and mail is flowing. The database is fine at the moment.
              It is back on the netwowk, but not seen by the other 2 DCs. I did remove it physically and then used NTDSutil as stated below. I would be fine if it never takes on the DC role again, but I'll need to get the AD sorted. I am receiving event ID 1411 with NTDS Replication and 1104 on NTDS KCC, so reseraching that. At this point not sure if I should try to DCPromo or not. Thanks all for the suggestions.

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              • #8
                Re: Switching Exchagne servers after a failure

                Don't dcpromo an Exchange server it isn't supported.
                Check DNS and sites/services to see if there are any objects left over for the machine. In DNS you will have an A record as you created it with the same name but check to see if it is listed as a name server etc.
                DCDiag and NetDiag should be run too.
                Also try "setspn -L hostname" to see if anything is listed there for the Exchange box.
                cheers
                Andy

                Please read this before you post:


                Quis custodiet ipsos custodes?

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