Lenovo Storage D1212 - Power Cooling Module Faults; Thermal Monitoring and Control

Table 19. Alarm Conditions (continued)
Status Severity OPs Panel LED
Enclosure configuration error (VPD)
Fault - critical Module Fault
Low warning temperature alert Warning Module Fault
High warning temperature alert Warning Module Fault
Over-temperature alarm Fault - critical Module Fault
I
2
C bus failure Fault - loss of redundancy Module Fault
Ops panel communication error (I
2
C) Critical fault
Module Fault
RAID error Fault - critical Module Fault
SBB interface module fault- no
functionning modules remaining
Fault - critical Module Fault
SBB interface module removed Warning Module Fault
Drive power control fault Warning - no loss of drive power Module Fault
Drive power control fault Fault - critical - loss of drive power Module Fault
Drive removed Warining Module Fault
Insufficient power available Warning Module Fault
For details on how to remove and replace a module see Chapter 6 “Module Removal and Replacement” on
page 75.
Power Cooling Module Faults
Symptom Cause
Action
Ops panel module fault LED amber Any power fault. Check that AC mains connections to
PCM are live.
Fan fail LED is illuminated on PCM A fan failure Replace PCM.
Thermal Monitoring and Control
The enclosure system uses extensive thermal monitoring and takes a number of actions to ensure that
component temperatures are kept low and also to minimize acoustic noise. Air flow is from the front to the
rear of the enclosure.
Chapter 5. Troubleshooting and Problem Solving 63