Issue
VMware ESXi vSphere client host Health Status (Configuration tab) shows Unknown and Question marks (?) next to each component.
Trying to Reset Sensors fails with error:
Error
A general system error occurred: Reset System Health Failed for One or More Sensors
Call "HostHealthStatusSystem.ResetSystemHealthInfo" for object "healthStatusSystem" on ESXi <server> failed."
Resolution
Issue was resolved by restarting CIM Server.
- Go to Configuration tab > Security Profile (in Software section)
- Click on Properties (next to Firewall section)
- Select CIM Server and click Options
- and then Restart
DELL PowerEdge 2950
VMware ESXi 5.0
