Rx6600's fan speed

[Dhananjaya Amarakoon]

Hi Friends,

We have two rx6600 servers in the testing environment (going to production in very soon) and when Air Condition turns off (for testing), one server goes down immediately while other server still running in the same environment.
I checked the MP logs of the server and found several "COOLING_UNIT_FAILURE"
Entry in the system event logs. But PS output says all fans are in the normal status.

scp1] MP:CM> PS
PS
For System Processor Status see the SS command.

System Power state: On
Temperature : Normal

Power supplies State
-----------------------------------------------------------
Power Supply 0 Normal
Power Supply 1 Normal

Fans State
-----------------------------------------------------------
System Fan 1 Normal
System Fan 2 Normal
System Fan 3 Normal
System Fan 4 Normal
System Fan 5 Normal
System Fan 6 Normal

So is there any actual failure in the fan units?

Other thing that I want to know, is there any method to increase a selected fan's speed manually?

Best Regards
Dhananjaya.

[Torsten.]

Could you please post the result of

MP:CM> sysrev

[Dhananjaya Amarakoon]

Thanks
It will take little time to take sysrev output because I don't have access to server right now.

Anyway do you have any idea about any way to increase fan speed manually ?

Best Regards
Dhananjaya

[YAQUB_1]

Hi,

Can U paste Event log "D" press?

BR/
Yaqub

[mits]

It appears to me you checked the PS status after you turned on the DC power. You can review full SEL entries with the TEXT mode (not Keyword mode) and it shows you the fan number something like below.

Log Entry 47: 04 Jan 2008 03:00:39
Alert Level 5: Critical
Keyword: COOLING_UNIT_FAILURE
Cooling unit failure
Logged by: Baseboard Management Controller;
Sensor: Cooling Device - System Fan 2
Data1: transition to Critical from less severe
0x20486D92570203A0 FFFF0207F10A0300

If the fan came back to the normal state before you checked PS status, I think you can see the event COOLING_UNIT_OK.

Note that you also can check the diagnostic panel for the internal fan status and/or the fan LEDs for the external fans, #4, 5 and 6.

If you want to troubleshoot your fan failure, you can swap suspect fan with the other fan temporarily.

[Dhananjaya Amarakoon]

Thanks you guys...

I have attach logs that I collected from server in few days back (SEL and Forward Event Logs and some command out puts). Right now I don't have access to server to get latest logs with text mode.

I take this PS outputs while system up and running.

Best Regards
Dhananjaya.

[Dhananjaya Amarakoon]

Dear All,

Also Is there any method to change fan speed of the server by manually ?

Best Regards
Dhananjaya.

[mits]

There is no command you can control the fan speed.

[rick jones]

Are the two systems in the same rack? Same height from the floor? Other systems nearby which might be blowing hot air at one of them? While it might be a long shot, the inlet air temp of one system may be higher than the other, leading it to shut down sooner. Particularly if things were operating close to the margins.