Seagate Exos X 4006 Series Hardware Installation And Maintenance Manual page 93

Table 16 5U enclosure corrective action for fault conditions (continued)
Symptom
Module fault LED is on
and an expansion module
fault LED is on
-or-
Thermal monitoring and control
Module fault LED is on
and a PSU fault LED is on
-or-
Increased fan speed is
greater than 12K RPM
when the ambient
temperature is below 23°C
(73.4°F). Factors such as
ambient temperature,
number of installed drives,
and altitude each
influence fan speed.
93 Chapter 9 Hardware installation and configuration issues
Cause Recommended action
A fault condition related
1. Restart the expansion module with a CLI or WBI command..
to the hardware in the
2. Confirm the redundant expansion module is properly functioning.
rear panel area
3. Select one of the following actions:
4. If the expansion module still has a fault, and the failure is related to a host
5. If the expansion module still has a fault, remove the power cord, wait 1 minute,
6. If the expansion module still has a fault, replace it within the specified ten
7. If installing a new expansion module that still has a fault, remove it, inspect
Internal temperature
1. Confirm you have met ambient temperature requirements identified in the
exceeds the present
threshold for the storage
enclosure
2. Confirm you fully closed both main bay and auxiliary bay covers so latches
3. Determine if one of the PCMs failed or is in the process of failing. Verify all fans
4. Follow instructions related to increases in fan speed, identified below.
5. Shut down the storage enclosure and investigate before continuing.
Increases in fan speed are
1. Confirm all hardware is properly installed, all drives are level and latched, and
associated with reaching a
thermal threshold as the
first stage of the thermal
control process. If you
2. Look for airflow restrictions at the front and rear of the storage enclosure.
encounter fan speeds
greater than 12K RPM
when the ambient
temperature is below 23°C
(73.4°F), the likely cause is
3. Confirm there are no restrictions based on contaminates, such as dust.
reduced airflow through
the system.
4. Look for excessive re-circulation of heated air from the rear to the front of the
5. Verify temperature is within product specifications. Refer to
If both have fault conditions, follow shut down instructions and power off
l
the system enclosure by removing power to both PSUs. Do not power on
until after you successfully replace both expansion modules.
If only one expansion module is failing, remove power, wait 1 minute, then
l
reset the expansion module.
port, follow the steps associated with system application faults below.
then reseat the expansion module.
minutes with a new one.
connections for bent pins, reinstall it, then check the event log for errors.
Environmental Requirements section and that the air flow moves from the
front to the rear of the storage enclosure.
fully engage.
are running at a similar RPM. If the impellers of a fan turn more than 2K RPM
slower than the other fan, replace the PCM.
both drawers are fully closed and latched.
Recommendation: Visually inspect hardware during installation or
replacement to fully engage or secure it.
Recommendation: If a rack door blocks airflow by more than 60%, make sure
it has a front minimum gap of 75mm (3 in) and a rear minimum gap of 152mm
(6 in).
Recommendation: Improve removal of contaminates and keep area clean.
storage enclosure.
Recommendation: Avoid mounting in rack cabinets that are fully enclosed.
regulations.
Recommendation: Reduce the ambient temperature in the room.
Standards and