I believe that's covered in the admin guide. I'm checking on that now. What version of FluidFS are you running?
The short of it is. Promote the volumes on the DR side, then depending on how you are integrating that into your network, (DFS, or just DNS) set it to point to the new FS unit.
Re: Failover to 2nd CM. Yes that would be if you had two units on each side in a cluster configuration.
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