Multiple hardware sensors status shows as unknown and absent hardware's status shows warning on HPE Gen 10 servers

Products

• VMware vSphere ESXi

Issue/Introduction

• All the presence sensor states are displayed as unknown in Hardware monitoring
  Monitor->Hardware Status->Sensors.
  
  
• If the devices are physically absent from a server
  
  
• The device state might be displayed as a warning:
  [Device] I/O Module n ALOM_Link_Pn or [Device] I/O module n NIC_Link_Pn
  
  
• The device's warning alarm could be raised.

Environment

7, 8

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

1. The fix implemented is to ignore sensor warnings on iLO firmware prior to version 1.40.
   
   
2. Workaround: downgrade the iLO5 firmware to 1.20.

 

Additional Information

There are some additional improvements in HPE iLO5 firmware 1.40. For more information see HPE advisory