On Sat, 21 Mar 2009 17:58:05 -0500
Dale <rdalek1967@gmail.com> wrote:

> Neil Bothwick wrote:
> > On Sat, 21 Mar 2009 02:26:36 -0500, Dale wrote:
> >
> >> What may also be a good idea is to have some way to shut the systems
> >> down when they get to hot or if the A/C fails.
> >
> > Most BIOSes will do this automatically,although they tend to let the
> > temperature get quite high. lm_sensors includes a daemon that will monitor
> > temperatures and send warnings and alarms.
> 
> I may be wrong here, but doesn't it just shut off like cutting off
> power?  Or does it tell the OS to do the shutdown, like in a real
> hurry?  I never tested that "feature" so I'm not real clear on how that
> works. 

Sometimes there is also an option to send ACPI "power button" event
beforehand, but either way that's usually is the "last resort" case -
last thing I want is a hardware shutdown just because of high load.

Besides, it's none too flexible - sometimes just one of the
conditioners goes down, so the room temp gets to, say, 25C, but that's
still not a reason to panic if the situation is under control.

And even when bunch of bioses shut system down all the systems
correctly because of cpu/chipset heat when A/C dies, there'd be a lot of
hard drive failures in a few weeks.

-- 
Mike Kazantsev // fraggod.net