Multiple hardware sensors status shows as unknown and absent hardware’s status shows warning on HPE Gen 10 servers
Symptoms:
- All the presence sensor state are displayed as unknown in Hardware monitoring Monitor->Hardware Status->Sensors.
- If the devices are physically absent on a server,
- The device state might be displayed as warning: [Device] I/O Module n ALOM_Link_Pn or [Device] I/O module n NIC_Link_Pn
- Warning alarm for the device could be raised.
Cause
HPE Gen10 servers, iLO 5 firmware 1.30 has new sensors which cause unspecified status for I/O Modules . For more information, see the HPE Customer Advisory
Resolution
The fix implemented is to ignore sensor warnings on iLO firmware prior to version 1.40.
To implement this fix upgrade to patch as below
ESXi 6.5 P04 - patch esxi650-201912002. For more information see release notes
ESXi 6.7 P01 - patch esxi670-201912001. For more information see release notes
To download the patch go to Customer Connect
Workaround:
To workaround this issue downgrade the iLO5 firmware to 1.20.
Additional Information
Refer to VMware KB to correlate patch and build numbers
There are some additional improvements in HPE iLO5 firmware 1.40. For more information see HPE advisory
Impact/Risks:
Requires a ESXi host reboot.