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Date: Tue, 23 Aug 2011 14:04:14 +0200
From: Marius Strobl <marius@alchemy.franken.de>
To: Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no>
Message-ID: <20110823120414.GB73912@alchemy.franken.de>
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Cc: freebsd-sparc64@freebsd.org
Subject: Re: Blade 1000 - fan control and / or environmental monitoring?
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On Mon, Aug 22, 2011 at 08:45:39PM +0200, Torfinn Ingolfsen wrote:
> I notice that when my Blade 1000 runs FreeBSD (now upgraded to 8.2-stable),
> the fans runn at full blast.
> But when it runs Solaris, the speed of the fans is regulated.
> 
> Do we have any fan control / enironmental montoring for Blade 1000 in FreeBSD?

No, FreeBSD/sparc64 doesn't support OS-based fan control. FreeBSD/powerpc
has a one-off solution for fan control in the kernel but I think the
proper way to implement this is with a userland daemon via a MI actuators
and sensors framework with just a safety belt in the kernel that switches
fans to full speed in case the daemon dies or the machine panics (in
principle that also is how Open(Solaris) controls the fans in B1K).
Unfortunately such a framework hasn't happened so far ...

Marius