If you ever find that the sensors on your ESXi server show an Unknown status. You may think a reboot is your only option to get it functioning again however not true.


If you SSH to the system and restart the service using:

~ # localcli hardware ipmi sel clear
~ # /etc/init.d/sfcbd-watchdog restart

Then click the reset sensors button. Everything will start working again.

VMware ESXi 5.5 – Hardware Health Status shows “Unknown”

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