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How do we replicate Exchange server data across two geographical locations?

David Haycox
David Haycox asked
Medium Priority
Last Modified: 2012-05-06
We have a requirement to set up replication of Exchange data across two geographically dispersed sites.  All Exchange data needs to be replicated so that, in the event of a failure at one site, users can connect to the other site instead.

What software is required?  Can this be achieved with, for example, Exchange Enterprise alone, or is a third party solution required?
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As far as I know only exchange 2007 can do site replication.
Expert of the Quarter 2009
Expert of the Year 2009

Natively, Exchange 2003 cannot do what you want. You will need to use a third party tool like DoubleTake or Neverfail.

Exchange 2007 can do it, using clustering technologies.

However you didn't say which version of Exchange you were using.

David HaycoxConsultant Engineer


We'll use whichever version we need to do the job!  There's currently an Exchange 2003 server at one site only, but we'd be expecting to replace that as part of the job.

Makes sense to go with 2007 as it's the latest version of course, and if it can replicate without purchasing any other software, so much the better.

What about versions of Exchange 2007 though?  Is Enterprise required, or will Standard do the job?
Expert of the Quarter 2009
Expert of the Year 2009
For live replication you will need Enterprise everything, because it is using CCR. I would suggest that you either spend a lot of time reading, or you get a consult in to do the work for you.
If you don't need live then you could use SCR, which will run on standard edition. You will need two Exchange 2007 licenses though, and it is best setup at the point of installation.


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