Blade 1000 - fan control and / or environmental monitoring?

[Nathan Whitehorn]

On 08/23/11 07:04, Marius Strobl wrote:
> 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 ...
>

The stuff we wrote for PowerPC could become MI with an svn mv. The 
userland daemon approach is supported, though it could be supported 
better, in addition to a simpleminded kernel process that runs in the 
absence of that daemon so that the machine does not howl like a banshee 
during the installer and single-user-mode.
-Nathan