Pcm Faults; Thermal Monitoring And Control - Dell EMC ME4084 Owner's Manual

Table 20. 2U alarm conditions
Status
PCM alert - loss of DC power from a single PCM
PCM fan fail
SBB module detected PCM fault
PCM removed
Enclosure configuration error (VPD)
Low warning temperature alert
High warning temperature alert
Over temperature alarm
2
I C bus failure
Ops panel communication error (I
RAID error
SBB interface module fault
SBB interface module removed
Drive power control fault
Drive power control fault
Drive removed
Insufficient power available
For details about replacing modules, see
NOTE: Using the ME Storage Manager, monitor the storage system event logs for information about enclosure-related
events, and to determine any necessary recommended actions.

PCM faults

Table 21. PCM recommended actions
Symptom
Ops panel Module Fault LED is amber
Fan Fail LED is illuminated on PCM
1. See 12 Gb/s controller module LEDs
2. See Table 11. PCM LED states

Thermal monitoring and control

The storage enclosure system uses extensive thermal monitoring and takes a number of actions to ensure component temperatures are
kept low, and to also minimize acoustic noise. Air flow is from the front to the back of the enclosure.
36 Troubleshooting and problem solving
2
C)
Replacing an IOM.
Cause
1
Any power fault
2
Fan failure
for visual reference of Ops panel LEDs.
for visual reference of PCM LEDs.
Severity
Fault – loss of redundancy
Fault – loss of redundancy
Fault
Configuration error
Fault – critical
Warning
Warning
Fault – critical
Fault – loss of redundancy
Fault – critical
Fault – critical
Fault – critical
Warning
Warning – no loss of disk
power
Fault – critical – loss of disk
power
Warning
Warning
Alarm
S1
S1
S1
None
S1
S1
S1
S4
S1
S1
S1
S1
None
S1
S1
None
None
Recommended action
Verify AC mains connections to PCM are
live
Replace PCM