In theory a upgrade of an UCS is not complicated, but there are many stumbling blocks. I show you my procedure, bugs, some hints and Cisco TAC Support stuff 😉 See how i lost the Fibrechannel link permanently as a result of this “little” upgrade See some hints to upgrade successfully First of all, read carefully the release notes and check the compatibility lists! As an example, we have an 4 year old Blade B230M2 with an Adapter M81KR (N20-AC0002) that is deprecated and not supported … Continue reading stumbling blocks in upgrading Cisco UCS (Part 1of2)