Purpose

Last Review Date

Instructions for the Reader

Troubleshooting Details

Check the output of "showstatus" command to see if there are faults present on the platform.
A system without HW issues will provide an output like this one:

XSCF> showstatus
No failures found in System Initialization.

Check the output of the following command to see if the FANs are rotating at a higher speed than the expected in a sane situation
(Low speed - Level-4 on M3000 are the values expected in case of normal operation)

XSCF> showenvironment Fan

this is an example of a "normal" situation (took from an M5000):

XSCF> showenvironment Fan
FAN_A#0:Low speed
        FAN_A#0:  3367rpm
FAN_A#1:Low speed
        FAN_A#1:  3317rpm
FAN_A#2:Low speed
        FAN_A#2:  3367rpm
FAN_A#3:Low speed
        FAN_A#3:  3317rpm
PSU#0
    PSU#0:Low speed
        PSU#0:  3668rpm
        PSU#0:  3479rpm
PSU#1
    PSU#1:Low speed
        PSU#1:  3552rpm
        PSU#1:  3515rpm
PSU#2
    PSU#2:Low speed
        PSU#2:  3308rpm
        PSU#2:  3276rpm
PSU#3
    PSU#3:Low speed
        PSU#3:  3154rpm
        PSU#3:  3245rpm

If the output of the showstatus command is showing non healthy HW present in the platform
and the FANs are not running at Low speed (or Level-4 on M3000) than there could be
a relationship between the reported FAN noise and the HW faults.

This situation needs to be analyzed and properly addressed.

Please open a Service Request to Oracle Support (see Step #5)

When some PSUs are not used the FAN raise their speed to compensate this situation.
Typically unused PSUs appear similar to the following "showhardconf" command output:

    PSU#0 Status:Normal; Serial:1357FYG-0845AD0036;
        + FRU-Part-Number:CF00300-2011 0202 /300-2011-02-02;
        + Power_Status:Input fail; AC: - ;

In this scenario the lack of power on PSU(s) is the issue to be investigated.

If power cords are plugged in but the command output field  is still " - " then the
first thing to do should be to have an electrician check the datacenter power source.
There may be an issue on that side.

If PSUs are plugged in and Power Source is good then the situation has to be analyzed and properly addressed.

Please open a Service Request to Oracle Support (see Step #5)

See the following doc for a guidance on expected behavior of FAN functionality based on the environmental situations:
Sun SPARC Enterprise[R] Mx000 server fan/fantray temperature and failure behavior. (Doc ID 1019147.1)

According to the information present in this document an increased rotation speed doesn't always mean the presence of an issue.

While performing maintenance activities the FAN speed is raised.
If, for some reason, that flag is not removed at the end of the maintenance the FAN speed stays high.

The maintenance flag is set at two levels.

- system level (visible from showhardconf output)

SPARC Enterprise M9000;
    + Serial:AKD0907115; Operator_Panel_Switch:Locked;
    + Power_Supply_System:Dual-3Phase; Ex:Dual-3Phase; SCF-ID:XSCF#0;
    + System_Power:Maintenance; System_Phase:Cabinet Power On;

  To release the maintenance flag run the unlockmaintenance command

- FRU level (visible form showboards -va output)

XSB  R DID(LSB) Assignment  Pwr  Conn Conf Test    Fault    COD 
---- - -------- ----------- ---- ---- ---- ------- -------- ----
00-0   00(00)   Assigned    y    y    y    Passed  Normal   n   
00-1   02(00)   Assigned    y    y    y    Passed  Normal   n   
00-2   04(00)   Assigned    y    y    y    Passed  Normal   n   
00-3   01(00)   Assigned    y    y    y    Testing  Normal   n  
<... snip ...>

An example of the "showenvironment Fan" output in this situation is:

FAN_A#0:High speed
   FAN_A#0:  5113rpm
   FAN_A#0:  5037rpm
   FAN_A#0:  4891rpm

FAN_A#1:High speed
   FAN_A#1:  5273rpm
   FAN_A#1:  5273rpm
   FAN_A#1:  5357rpm

FAN_A#2:High speed
   FAN_A#2:  5113rpm
   FAN_A#2:  5037rpm
   FAN_A#2:  4963rpm

FAN_A#3:High speed
   FAN_A#3:  5192rpm
   FAN_A#3:  5357rpm
   FAN_A#3:  5357rpm

<... snip ...>

The maintenance flag is managed by replacefru command which raises it at
the start of the maintenance task and remove it when/if the activity finish correctly

Similar situations have to be analyzed and addressed.
Typically in that case, any further replacefru will fail.

Please open a Service Request to Oracle Support (see Step #5)

If the previous steps did not helped you in understanding the situation or further action has to be taken as explicitly stated, then a SR has to be open.
In this case you'll have to gather and send to Oracle the snapshot of the Active XSCF.

See:

• Gathering diagnostic data for Sun SPARC Enterprise[TM] Mx000 (OPL) Servers (Doc ID 1008229.1)
• How to Upload Data to Oracle (Doc ID 1020199.1)

Manufacturing is using 2 different vendors for the fans to be built into the fan modules.

Type 1: San Ace 172, 7 blades (Model 9GV5748P5H03) sound file




Type 2: Japan Servo, 5 blades (Model G1751M48BYAP-22) sound file



Some customer are finding that the noise of the type 2 fan is "unpleasant" and loud. Although the noise generated is within the specification, the pitch is different.
Both Type 1: San Ace 172, 7 blades (Model 9GV5748P5H03) and Type 2: Japan Servo, 5 blades (Model G1751M48BYAP-22) can be either p/n 541-3447 and 541-0573, so visual inspection is always needed.

If you have a case / task where a customer complains about the noise, first ensure that the fan are really at low speed:

XSCF> showenvironment Fan
The values should be around 3400 RPM, then fill out the table located at Noisy Fan Tracking Page (Beehive Workspace).

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