Temperature Sensors; Troubleshooting; Psu And System Fan Faults - Seagate Exos E 4U106 Hardware Installation And Maintenance Manual

Temperature sensors

Temperature sensors throughout the enclosure and its components monitor the thermal health of the storage system.
Exceeding the limits of critical values will cause a notification to occur.

Troubleshooting

The following sections describe common problems that can occur with your enclosure system, and some possible
solutions. For the problems listed in
indicate a fault. See also
Table 10 Alarm conditions
Status
PSU alert - loss of DC power from a single PSU Fault - loss of redundancy
PSU fan fail
CFF module detected PSU fault
PSU removed
Enclosure configuration error (VPD)
Low temperature warning alert
High temperature warning alert
Over temperature alarm
I C bus failure
2
Front panel communication error (I
RAID error
CFF interface module fault
CFF interface module removed
Drive power control fault
Insufficient power available
1-The enclosure will continue operating, requiring an administrator to take appropriate action, such as replacing a
PSU or reducing the room temperature. Alarm messages are signaled by the SES pages
2-An alarm is not issued for this status and severity condition.
3-The enclosure will take action, such as shutting down in order to protect the enclosure's data content. Alarm
messages are signaled by the SES pages

PSU and system fan faults

Symptom
Front panel Module Fault LED is
amber 1
Amber LED is illuminated on fan
module 2
1-See Figure 3 (page 25)
2-See Figure 12 (page 27)
68 Troubleshooting and problem solving
Table 10, the pertinent fault LEDs on the enclosure front panel glow amber to
"Overview of front panel LEDs" (page
C)
2
(page 34).
Cause
Any power
fault
Fan failure
for visual reference of front panel LEDs.
for visual reference of PSU LEDs. See
25).
Severity
Fault - loss of redundancy
Fault
Configuration error
Fault – critical
Warning
Warning
Fault – critical
Fault – loss of redundancy
Critical fault
Fault – critical
Fault – critical
Warning
Fault – critical–loss of drive
power
Warning
(page
Recommended action
Verify AC mains connections to the PSU are live
Replace system fan module
Figure 13 (page 28) visual reference of system fan module LEDs.
Alarm
S1
1
S1 1
S1 1
None 2
S1 1
S1 1
S1 1
S4 3
S1
1
S1
1
S1 1
S1 1
None 2
S1 1
None
2
34).