I have a 9300 on my desk and I just downgraded it from factory install Fuji to the Cisco recommended stable Everest - 1 PSU and the fans sound weird, revving up and down ever so slightly. Almost like the switch is haunted. I am pretty sure this wasn't the case with the Fuji build. Also, unrelated but was surprised to see the 25g interfaces disappear. Here's what it displayed at boot:
interface TwentyFiveGigE1/1/1 ^ % Invalid input detected at '^' marker.
interface TwentyFiveGigE1/1/2 ^ % Invalid input detected at '^' marker.
This went away after I wrote mem on the new IOS Everest.
... View more