Haot hardware sensor status changed

[ffortier]

I have just upgraded from version 6.1 to version 6.5 and all the sensors are now equal to unknown.

Any ideas?

[Vitaliy S.]

Could you please clarify if you've received multiple alarms on that or the status for all hosts hardware sensors is reported as unknown? Could you please tell me what does vSphere Client show for these sensors?

[jeremyh8]

ffortier i have this same issue. I am running 2 bladecenter H chassis and have hs21/hs22 blades. I had to disable this alert but i think it is just hardware age. Do you by chance have the same blades?

[jeremyh8]

just found this... makes sense!

In v6.5 we have switched to a more advanced host hardware collection method (CIM over XML) and for some sensors VMware doesn't have any state and returns “unknown” state, which leads to triggered alarms. Please remove the rule that triggers "Host hardware sensor status changed" alarm when sensor changes its state to “Unknown”. Hope this helps!