I've just received a project plan for a customer that will be migrating from Unity 7 (Primary/Failover setup) to Unity Connection (Active/Active setup). They have chosen, at least at this point, to use their current servers (7835's) for this upgrade. I understand there may be a need for hardware upgrades, and I'll research that as soon as I get the exact model numbers of the servers, but I'm searching for a "Best Process Scenerio", so I'm turning to you.
My question is:
Can I shut down the current Unity 7 Failover server
You're on the right track. However, when you build the first Unity Connection server you will designate it as the first node (or Publisher). So, once you've imported data and you are ready to build the second Unity Connection node, you won't need to use COBRAS anymore at that point. You will add that node as a Subscriber and data will replicate - assuming you are doing an HA cluster.
Have a look at this presentation on COBRAS and migrating from Unity to Unity Connection in conjunction with the Cisco doc. Also check out www.ciscounitytools.com and the Help file for COBRAS has a ton of info as well.
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