PE1950 fan speed

[Eoin_Mcguinn at Dell.com]

Chassis fan speed is derived from the ambient temperature sensor on the
control panel board. 

-----Original Message-----
From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of Kuba Ober
Sent: 08 February 2008 12:46
To: linux-poweredge-Lists
Subject: Re: PE1950 fan speed

On Monday 04 February 2008, Vernon A. Fort wrote:
> I have a PE1950 running gentoo.  During a cpu stress test, we expected

> the fan speed to go up but it did not.  We had the cpuload around 25.0

> and when i put my hand at the back of the server, it was very hot to 
> the touch.  I have looked at the lm_sensors and the openipmi but i did

> not find anything related to controlling the fanspeed, i.e. making it 
> go faster when under heavy load.
>
> Could someone point me to some good reading.  Basically - i need to 
> monitor the server and have something that adjusts accordingly.

There already is. You're trying to second guess built-in thermal
management. 
There's no need to. Just let it do its job. High cpuload doesn't
necessarily translate to a need for the fans to go much faster. It all
depends.

Cheers, Kuba

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