Posts Tagged ‘Sensor’

VMware: vSphere 4.0 “Hardware monitoring service not responding, the host is not powered on”

August 10th, 2010 2 comments

After receiving some emails from vCenter that my heartbeat is incorrect I decided to troubleshooting this issue, but after some time but didn’t found a good answer to solve this issue so I called VMware..

[VMware vCenter – Alarm Host error] Error detected on esx51 in [clustername]: Agent can’t send heartbeats.msg size: 1014, sendto() returned: Operation not permitted




– Upgrade your ESX Host firmware;

– You need to reset the default sensors once, goto:

ESX Host > Hardware Status > Select: “System event” log and click Reset Sensor. This will clear the sensor status and recheck the hardware sensors again. If there still some errors please check your hardware, if not.. your fake/hanging warning disappears.


Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has over 15 years experience in IT, primary focus: virtualization and modern worksplace.

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