Sun Netra 240 (DC) Server
 
Sun Netra 240 (AC) Server
 
Sun Netra 240 (AC) Server
 

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In this Document

Goal

Solution

Applies to:

Goal

 The goal of this document is to describe how to identify and troubleshoot fan issues on the Sun Netra 240 Server.

Solution

 1) Determine which fan failed

Netra 240 requires different fan assembly's to provide cooling. It has two different fan assembly's, one for the front and rear of the unit and the power supply fans (located within the PSU).

The rear fan is called: Rear Blower/Air Duct Assembly

The front fan is called: Front CPU / Memory Blower Assembly

Depending on System type and OS Version a failed Fan can be noticed by:
- Fault LED (Temperature) lit on the Front Panel or the Power Supply
- Errors in /var/adm/messages
- prtdiag -v output
- ALOM event log (showlogs -v)
- ALOM "showenvironment" command

Fans often get very noisy before they fail completely. A noisy fan can be a sign of an imminent failure.

Here are examples of command output to determine the fans installed and if any fans have failed:

From prtdiag -v output:

 

From the ALOM showenvironment command output:

 

From these outputs, we can determine the fans installed in the Netra 240 Server:

Front CPU/Memory Blower Assembly

F2.RS

F3.RS

Rear Blower/Air Duct Assembly:

MB.P0.F0.RS

MB.P0.F1.RS


Power supplies Fans:
(From the prtdiag -v output only)

PS0 FF_FAN

PS1 FF_FAN


We can also see from these outputs that we have a fan failure, and this can be additionally confirmed by :

From /var/adm/messages:

 

Alom showlogs -v error message:

 

These messages indicate a fan failure of a Fan on the Rear Blower/Air Duct Assembly - MB.P0.F0.RS


2) Determine the correct Fan part number for the Sun Netra 240 Server.

To identify the part numbers of these parts, we will need to identify if the server is RoHS or pre-RoHS/non-RoHS compliant.

Netra 240 RoHS-compliant

371-0823 [C] Front CPU/Memory Blower Assembly, F2/F3

371-0836 [C] Rear Blower/Air Duct Assembly, F0/F1

Check this link for fan locations in Netra 240 RoHS compliant
https://support.oracle.com/handbook_private/Systems/Netra_240_R/wiring_1.html
Netra 240 pre-RoHS or NO RoHS-compliant

371-0836 [C] Rear Blower/Air Duct Assembly, F0/F1

370-6124 [C] Front CPU / Memory Blower Assembly, F2/F3

370-6125 [C] Rear Blower / Air Duct Assembly, F0,F1

Check this link for fan locations in Netra 240 pre-RoHS/non-RoHS compliant
https://support.oracle.com/handbook_private/Systems/Netra_240/wiring_1.html

Caution:

The Netra 240 server comes installed with heat sink assemblies, and NO processor fans, on the system board(s).
However, processor fans with heat sink assemblies are present on a Field-Replaceable system board assembly.
The reason is that the Netra 240 pre-RoHS/non-RoHS server shares the same system board FRU with the Sun Fire V240, which includes the CPU fan/heatsink with the fans attached.

Therefore, before installing the replacement system board into the Netra 240 server chassis, you must first remove the fans from the CPU heat sink assemblies.

For more details see Doc ID 1017613.1: Netra[TM] v240 - System Board Replacement.
https://support.us.oracle.com/oip/faces/secure/km/DocumentDisplay.jspx?id=1017613.1

See the Netra 240 Server Service Manual for more details
http://download.oracle.com/docs/cd/E19102-01/n240.srvr/817-2699-13/817-2699-13.pdf

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