How can I run Exchange in two office?

Exchange installation
Microsoft Exchange 2003
I have an office in the US which controls my exchange server and I VPN out to my 2nd office in Peru. I want to run a second instance of Exchange in my Peru office so our email system does not go down if my US office is down. How do I do that now that everything is setup the way it is. I have DC in both offices.

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that depends on two things:
1) how fast is the network link between the two offices?
2) do you want everyone to be able to access their email if the office goes down or just the Peru employees?

if your answer to #2 is just Peru then you could setup a second exchange server in Peru and move their mailboxes to that server. If it is everyone then you will need to setup a cluster server so it is an exact duplicate of the server in the US. You could use programs like Neverfail or DoubleTake to do this. They will basically clone your first server to your second and setup a heartbeat which makes the servers listen to each other. When something changes on the first server it will be copied to the second. If the first server goes down then the second will take over within a few seconds and be the primary server. But this will be laggy if the line between the offices is slow. You would need to talk to Neverfail or DoubleTake to see how fast a line you would need to do this reliably.

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  • Notanexpert
    1) I have a T1 fiber internet connection in Lima and what I think is a T1 DSL connection here in Charlotte. Again not an expert on this stuff. :) 2) I think the real solution would be to have everyone able to access email but I guess if only one can be done that I will survive. I just need something better than what I currently have. Our firewall went out two weeks ago and our email was down for a day and a half until we could install the new hardware. Lima could operate but they had no email because of our situation. We survived on gmail. Thanks for your ideas, I am going to research some it some more and put something in place ASAP.
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