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DR Planning for Active Direcory

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  • DR Planning for Active Direcory

    We have deployed on domain controller on our Data Centre1 name Domain1
    All the different 40 location[Connected in WAN network] are accessing mails using Domain1\ only located Data Centre1.We have more than 10000 users in existing domain1.

    All location having saprated firewall setup for secuirity.

    We are planning to deploy similar DC on DataCentre2 & with continuous replication.



    We wants following information regarding the deployment of Domain Controller at Data Centre2[Located in remote WAN Location], for Following Two Situation in form of Advantage & disadvantage:

    1. If we deploy Separate domain Domain2 in Data Centre2.

    2. If we deploy Additional Domain Controller [ADC] on Data Centre2 of Existing Data Centre1 DC[Domain1].

    & Also the ports required to open in both above cases.


    Thanks in advance.
    Last edited by aatishbansod; 9th August 2008, 08:53.

  • #2
    Re: DR Planning for Active Direcory

    Originally posted by aatishbansod View Post
    1. If we deploy Separate domain Domain2 in Data Centre2.
    If you do that the 2nd Domain otherwise know as Domain2, would not contain any of your Users/Groups/Servers/WorkStations/etc.
    I personally would not go for that solution for DR reasons.

    Originally posted by aatishbansod View Post
    2. If we deploy Additional Domain Controller [ADC] on Data Centre2 of Existing Data Centre1 DC[Domain1].
    That is the Choice I would Pick

    Originally posted by aatishbansod View Post
    & Also the ports required to open in both above cases.
    http://www.microsoft.com/smallbusine...s_ms_prod.mspx
    http://support.microsoft.com/?id=832017
    Last edited by Akila; 9th August 2008, 09:28.

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    • #3
      Re: DR Planning for Active Direcory

      What exactly issues may be rise if we go for scnerio 1, If we dployed the replication & establish trust between Domain1 & domain2?

      What will be issues may we have to consider to go for scnerio 2?

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      • #4
        Re: DR Planning for Active Direcory

        the question that should be asked 1st which is not really clear yet is,
        What do you want to achieve from your DR plan?
        What is it exactly you are looking for from your DR plan?
        What do you want to protect with the DR plan?
        The DR is meant for a DataCenter failure or the DR is for a Global Active Directory corruption?
        please be more specific on what is it you are looking for,
        what Protection are you looking for and from what kind of disaster situation? - maybe you want from all situation, I don't know.
        but this is something that should be asked/answered & planed.
        Last edited by Akila; 9th August 2008, 14:48.

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        • #5
          Re: DR Planning for Active Direcory

          We are looking for following thing:

          1. When our One Data Centre1 fails completely, users can access same from Data Centre 2.
          2. Real time replication of users,computer,DNS from Data centre1 & Data centre2.
          3. further we have to plan for Exchange 2007 replication also on Data Centre2

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          • #6
            Re: DR Planning for Active Direcory

            then you need to be using Option number 2:
            " 2. If we deploy Additional Domain Controller [ADC] on Data Centre2 of Existing Data Centre1 DC[Domain1]."

            Option number 1 of creating a different Domain would yield you no good , since it would not pass/replicate User/Groups/Servers/Workstations,etc.

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            • #7
              Re: DR Planning for Active Direcory

              Agree with Akila.
              Setup 2 more DCs in the data centre and make sure they sync. Setup the subnets correctly in sites and services too. Exchange 2007 can be setup to replicate using SCR or something like Double Take (which is better in my opinion).
              cheers
              Andy

              Please read this before you post:


              Quis custodiet ipsos custodes?

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