UCS – Change Fabric Interconnect (FI) IP Addresses and/or Host Names

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Recently I ran into a situation where I was required to reconfigure the Fabric Interconnects to use a different IP address and host name. Initially, I was worried that this could be fairly complex as it might be deeply ingrained in the UCS configuration. I’m happy to report that it’s one of the easiest changes I’ve ever made. I only saw it partially documented on a single blog so I wanted to create another post in case someone else is in my same situation.

Pre-Requisites

  1. Serial connection to both FI-A and FI-B
  2. New IP addresses for FI-A, FI-B and the cluster
  3. A new root host name

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