Kill the power faster than poweroff?

Rocky McGaugh rocky at atipa.com
Thu Sep 11 11:30:18 EDT 2003


nice little snmpset to an APC Masterswitch will do the trick.

-- 
Rocky McGaugh
Atipa Technologies
rocky at atipatechnologies.com
rmcgaugh at atipa.com
1-785-841-9513 x3110
http://67.8450073/
perl -e 'print unpack(u, ".=W=W+F%T:7\!A+F-O;0H`");'

On Thu, 11 Sep 2003, David Mathog wrote:

> Is there a faster way to shutdown a system and kill
> the power than "poweroff"?  This is for use in
> emergency overheating conditions, where something
> that's effectively the equivalent of:
> 
>   % sync
>   [turn off the power supply]
> 
> is desired.
> 
> lm_sensors and mondo are running on our Athlon 2200MP
> cluster and I'm concerned that in the event of a
> catastrophic failure of the cooling system the CPUs
> might overheat before the poweroff sequence completes.
> Not necessarily flame out immediately, but at least
> get hot enough so that they no longer run correctly,
> then poweroff wouldn't be able to complete, and then
> it's roasted CPU time.
> 
> Tyan 2466 motherboards.
> 
> This is only for emergency overheating, poweroff is
> fine for a normal shutdown.
> 
> Thanks,
> 
> David Mathog
> mathog at caltech.edu
> Manager, Sequence Analysis Facility, Biology Division, Caltech
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