[Nut-upsdev] [PATCH 30/36] Implement an Emergency Power Off (EPO) feature.

[Arnaud Quette]

2012/3/9 Greg A. Woods <woods at planix.com>:
> From: "Greg A. Woods" <woods at planix.com>
>
> NOTE: This is different than a "FSD" command because with EPO the power
> _must_ be cut and must _not_ return without direct human intervention,
> and this must work while mains power is still being supplied.
>
> To handle emergency situations you can set the emergency power off (EPO)
> flag on your master upsmon system.  You can do this by calling upsmon
> again to set the flag, i.e.:
>
>        upsmon -c epo
>
> After that, the master and the slaves will do their usual shutdown sequence
> as if the battery had gone critical, and hopefully your UPS will be shut
> down by the master in such a way that they will not restart without
> manual intervention.
>
> WARNING:  not yet tested in a live configuration, though multiple code
> walk-throughs have been done.
> ...

I'm postponing this one, as for "DYING", to be able for me to get up
to speed and revive these discussions.

cheers,
Arnaud
-- 
Linux / Unix Expert R&D - Eaton - http://powerquality.eaton.com
Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
Debian Developer - http://www.debian.org
Free Software Developer - http://arnaud.quette.free.fr/