This is my question. I have searched both netpro and cisco.com to find some sort of black and white answer. I am running unity 4.2 with Exchange 2K3 on the back end and we are wondering if you can set up some type of dual partnership or fail-over between 2 exchange servers. Similar to fail over for unity, but if unity sees our message store go down, can we dynamically roll over to another mailstore? I have seen posts relating to a cluster solution on the exchange side. If you run the message store wizard you can only specify mail store and exchange server. What I am looking for is if our primary mail store goes down via network, power, etc..., can we dynamically roll over to a backup?
I have also seen posts and design guides regarding the subscribers that can span across multiple exchange servers. This is not what I am looking for. I am looking for the same thing that unity fail over provides, but on the exchange side.
Any help would be much appreicated!