Mirror Exchange Server 2003

Posted on 2009-02-11
Last Modified: 2012-05-06
Is there any way we can set up an offsite mirror of exchange server.  We already do so with our SQL server and were wondering whether anyone has done so with exchange
Question by:galabip
    LVL 14

    Expert Comment

    Double Take is one way

    Many others offer (mostly)  the same features as well.

    If you upgrade to Exchange 2007, you can do pretty much (but not all) what these kinds of programs do, without having to pay for their licensing, which can be pretty substantial.

    Author Comment


    I have looked into Double Take it does look good... have you used it - not sure of cost approx $5K I think... re Exchange 2007 I am concerned with the licensing implications I will look into that with our reseller

    I did not realise 2007 could mirror, I will check it out

    Thanks again  
    LVL 14

    Accepted Solution

    Well, Exchange 2007 does not exactly mirror.

    What you can do with Exch 2007:

    CCR - Continuous Cluster Replication.  Keeps a passive copy of the mailbox database on another server.  Can be set to automatically failover.  Can span subnets (and thus, geographical location).
    There are also other mailbox clustering (in Microsoft parlance, cluster mailbox = copy of mailbox) roles available in Exch 2007, but I think the only auto failover option is CCR

    Load balancing - you can have 2 servers (Windows NLB load-balanced) that assume the roles of Client Access (OWA, ActiveSync, Outlook Anywhere) and Hub Tranport (SMTP).  Since they are load-balanced, these services will be available, even if one server goes down.

    The only caveat if you want a setup such as this is that you need 4 servers (2 mailbox, and 2 Client Access/Hub Transport).  And, of course, all this does nothing for you if the network goes down !


    Author Comment

    Great info - we will lokk into the options yyou have outlined


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