Power to the Pedants [was: Power supply monitoring in Linux? ]

[Paul Lussier]

"Ben Scott" <dragonhawk at gmail.com> writes:

> On Nov 9, 2007 10:08 AM, Paul Lussier <p.lussier at comcast.net> wrote:
>> We need to monitor it in the OS to detect the failure on one of the
>> redundant power supplies (it would be tough to detect the failure
>> the second :)
>
>   Nonsense, that's *easy* to detect.  Kind of impacts availability,
>   though.  ;-)

Please allow me to rephrase:

  We need to have the OS detect the failure of at least one power
  supply.  It is imposssible for the OS to notice the complete lack of
  power in enough to time to make that information useful. :)

  After-the-fact discovery of a past lack-of-power is not overly
  useful for sending alerts to humans who may be able to prevent the
  future/imminent lack of power.

I'm sure someone else can say this more precisely and pedantically :)
-- 
Seeya,
Paul