[Nut-upsuser] Spurious shutdown

[Rob MacGregor]

On 6/27/07, Darren Salt <linux at youmustbejoking.demon.co.uk> wrote:
> I had a brief power interruption this evening which caused a spurious
> shutdown. The system log contains a report of "low battery" status; however,
> checking the battery soon after powering up again showed a fairly typical 80%
> charge. The UPS had, however, been beeping to indicate imminent shutdown,
> which is slightly suspicious.
<---SNIP---
> At present, I'm not certain whether this is a bug in nut or a problem with
> the UPS.

Simple test - while watching the reported status from the UPS, pull the plug :)

I had an UPS display similar issues, turned out the batteries were
pretty close to the end of their lives and the once 20 minute runtime
was down to a few minutes - just enough time to flag LB and for (most)
of the systems to shut down cleanly.

Certainly if the UPS itself is providing an audible LB signal then
it's unlikely that NUT caused an un-needed shutdown.

-- 
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Rob MacGregor
      Whoever fights monsters should see to it that in the process he
        doesn't become a monster.                  Friedrich Nietzsche