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Redundancy in SBS Domain possible

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  • Redundancy in SBS Domain possible

    Hi,

    We have a SBS 2003 R2 SP2 server in our organization. Some weeks ago the server stopped working and after a few hours everything worked fine again. the question arised if there is a possibility of buying a second server which can act as a redundant server when the SBS server goes down again.

    And which 'roles' of the SBS DC can be replicated or made redundant? in a perfect world it should be the Domain and the Exchange Data...

    Can anyone enlight me about this?

    Thanks in advange

    Victor

  • #2
    Re: Redundancy in SBS Domain possible

    If you buy SA (Software Assurance) with your license for SBS, you are allowed to maintain a "cold" server on standby with the same license.
    How you keep it patched, up to date and with your data is up to you - and weigh up the costs. Mail flowing to the cold server will somehow have to be merged with your main server when it comes back on line. What is the business cost of being down for a few hours like you say? What are the management and licensing costs of a cold server. Do the arithmetic, and see if it make sense, or the business owners buy in to it.
    TIA

    Steven Teiger [SBS-MVP(2003-2009)]
    http://www.wintra.co.il/
    sigpic
    Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

    We donít stop playing because we grow old, we grow old because we stop playing.

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    • #3
      Re: Redundancy in SBS Domain possible

      Hello Teiger,

      Thnx for the advice but is there also a 'warm' solution like a DFS replication server next to the SBS server which also holds a realtime copy of the AD?

      Best regards,

      Victor

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      • #4
        Re: Redundancy in SBS Domain possible

        If you have the money, then I believe DoubleTake has a solution - but remember you need an extra SBS license!
        TIA

        Steven Teiger [SBS-MVP(2003-2009)]
        http://www.wintra.co.il/
        sigpic
        Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

        We donít stop playing because we grow old, we grow old because we stop playing.

        Comment


        • #5
          Re: Redundancy in SBS Domain possible

          A possible solution is to add a Windows Server 2003 R2 to your network. This server have a realtime copy of the AD. This server can also act as a DNS / DHCP / file server, but the first 2 (DNS / DHCP) are not preferrable to run on this server though.

          But acting as a file-server you can 'kinda' balance the load in case the SBS server goes down. butteh, your workstations will have performance problems when the SBS server is down because this server holds the FSMO roles...

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          • #6
            Re: Redundancy in SBS Domain possible

            And where is his data, his mail? And you need to reconfigure default gateway, DNS, DHCP.Not what the OP intended, IMHO.
            As I have said many time before, unless your (small) business is turning over $10,000 an hour or more, or will suffer unrecoverable damage to reputation by being down, time is better spent getting the SBS back on line, than rejigging everything to work via a spare server. Clustering isn't an option with SBS, so use DoubleTake or similar - if it is that critical to you.
            TIA

            Steven Teiger [SBS-MVP(2003-2009)]
            http://www.wintra.co.il/
            sigpic
            Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

            We donít stop playing because we grow old, we grow old because we stop playing.

            Comment


            • #7
              Re: Redundancy in SBS Domain possible

              Why not invest in a SAN, this would allow you to store your Exchange Data and Files on the SAN, in case one server goes down you can quickly bring up another and bring up Exchange and File servers with a switch of a DNS record.

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