I can confirm same.
When upgrading from HPE ESXi 6.5U1 image to HPE ESXi 6.5 U2 image Gen9 servers will report fans 1 and 2 (not installed) as warning because of fan speed reading 0.
This is problem because monitoring reports those hosts as broken hardware.
Different scenario where doing clean installation of HPE ESXi 6.5U2 to DL360Gen10 with fan1/2 not installed does not create that error condition.
Here the same.
After Upgrade from 6.5. U1 to 6.5 U2 on DL 380p Gen8 shows warnings on empty fan slots.
Reset logs/sensors doesnt work as well.
Whats funny is that my old ProLiant ML350p Gen8 host (which isnt supposed to be VMware HCL) is fine on 6.5 U2.
Situation is the same on ESXi 6.7 (HPE Custom Build) - fans 1 & 2 aren't present (in fact, aren't supported by HPE) on a single-CPU DL360 (Gen 9) but show as error on System Sensor tab.
Hi All, I have the same problem with two HP ProLiant ML350 Gen9.
Both servers are fully updated with the latest BIOS and firmware from HPE.
From my tests the error happens with both upgrade or fresh install of ESXi 6.5.0 Update 2.
Moreover I got the same errors using both the HPE customized ESXi ISO and VMware standard ISO + updates via VUM and HPE vibsdepot.
This is really frustrating... I'm going to open a ticket to VMware and HPE.
I will keep you updated.