I believe I described it a bit incorrectly. We received the FC modules after the system was initially shipped to us. However, I didn't turn the system on before those modules had been installed.
I installed several EMC systems in the past ten years, and I don't remember any special procedures for enabling FC ports. I tried swapping the cables (no luck), but I have only two of them. We didn't intend to connect the system to the network using FC ports, so right now I'm short on their supply.
The main question is, how to view detailed FC port status information on the VNX system?