If you are checking the hardware status while connecting to the vCenter :
- Check if you are able to check the hardware status for other hosts in the same cluster or not
Just to isolate if this issue is limited to this specific host or not.
If it's not host-specific and all hosts have the same issue, Try to restart the vCenter service.
If it's host-specific, try the below :
-Connect directly to the ESXi host using the vSphere client and check if you can see the hardware status
If not proceed with the below :
-Restart the management agents
-Restart the sfcbd watchdog service
service sfcbd stop
chkconfig sfcbd-watchdog off
chkconfig sfcbd off
Note: Changing the chkconfig disables the sfcbd service and is persistent across reboots.
To re-enable the CIM agent on the ESX host, run these commands:
service sfcbd start
chkconfig sfcbd-watchdog on
chkconfig sfcbd on