Kill the power faster than poweroff?
rocky at atipa.com
Thu Sep 11 11:30:18 EDT 2003
nice little snmpset to an APC Masterswitch will do the trick.
rocky at atipatechnologies.com
rmcgaugh at atipa.com
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.
> David Mathog
> mathog at caltech.edu
> Manager, Sequence Analysis Facility, Biology Division, Caltech
> Beowulf mailing list, Beowulf at beowulf.org
> To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
More information about the Beowulf