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  • Replace DC

    Hello,

    I have this situation, that our DC wich is only DC in domain, should be replaced.
    It is W2k3 R2. There is a shared disk, in wich is users homefolders ( not accessible at the moment, due DNS issues)

    Domain is named [mycompany], and is created 2001. It has been transferred to this box from old 2000 server 3 years ago. At that time, I noticed, there has been Exchange server installed on DC, wich hasa been removed somehow incorrectly, becaus exchange could not be uninstalled nor re-installed.

    Now, we have 7 other servers in domain, and about 20 workstations.

    I would like to install a brand new DC, with all new ad, but name the domain still with old name, [mycompany]. Old DC would be then my personal fileserver, after demoted and perhaps format....

    I'd guess, workstations would be just fine, if I take users profiles to be default profiles, and take them to workgroup and rejoin to domain with this new DC, everything should be fine.

    How about servers...What to expect, total crash, or would it be so simple as I dream??

    Thanks in advance,


    Jouni

  • #2
    Re: Replace DC

    Depending what is installed on the other servers (e.g. SQL, SharePoint...) it may be as simple as scrapping the old and creating a new DC, then joining everything to the domain.

    In general, computers will work, but will not communicate....

    Without more information it is difficult to say and, if the changes will impact business operations, it may be better to get a specialist consultant
    Tom Jones
    MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
    PhD, MSc, FIAP, MIITT
    IT Trainer / Consultant
    Ossian Ltd
    Scotland

    ** Remember to give credit where credit is due and leave reputation points where appropriate **

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    • #3
      Re: Replace DC

      Well, one server is running MSSQL 2012, one server is ESXi, rest of the servers are virtual, one is Citrix, one is our Sharepoint, then there is our two accounting programs, they have both own server. Then there is some programs on servers, like Maventa, sending and receiving electronig invoices, Easy File Web Share, for well, sharing files. And virus protection central management program.

      All servers are 2008, except this DC.

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      • #4
        Re: Replace DC

        OK, doesn't matter if they are physical or virtual but probably (depending on your exact configuration) you will find that just creating a new domain will break SharePoint and SQL server (and anything that depends on them) badly.

        IMHO get a consultant to look in more detail and plan an effective migration because if you just go ahead you will face a lot of pain!
        Probably you will find that you should clean up AD and then put in a new DC to gracefully replace the current one, but there are too many unknowns to definitely answer
        Tom Jones
        MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
        PhD, MSc, FIAP, MIITT
        IT Trainer / Consultant
        Ossian Ltd
        Scotland

        ** Remember to give credit where credit is due and leave reputation points where appropriate **

        Comment


        • #5
          Re: Replace DC

          Okay, thank you, Ossian for your info. We will then start creating plan B...


          JOuni

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          • #6
            Re: Replace DC

            ime & o, if you want to keep some of what does work and get rid of the rest, dont start over.

            here is what i might do if i were in your scenario... pull up another DC and seize the PDC roll. your saying that exchange is hosed, so leave it hosed. if you need the mail in the mail stores, back it up (and verify its a good backup!) and keep it safe.

            take inventory of the other roles your servers play.. is there an ISA or RADIUS in use? ideally, you dont want ISA on your DC, but depending on how quickly you work, it may only be for an hour or 2 worst case.

            make sure you have some type of firewall between you and the world when doing this btw. if need be, throw in an EFW box or smothie or something, then get things operating with the new server (or servers as the case may require) and then clean up. for the time being, 'a new server' may only be represented by a client workstation with a copy of server, or even a virtual will suffice for the time being...

            once you have things running both correctly and conncurrently, then take out the original server you wanted to replace, slick it, update it and push it all back on it.

            give time or force replication between the times when changes are made and/or when you take servers down.. it saves you a headache later, especially when working with live mail stores.

            hope that helps...
            jb
            its easier to beg forgiveness than ask permission.
            Give karma where karma is due...

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