[Nut-upsuser] NUT-2.0.3 - problems on setting values

Arnaud Quette aquette.dev at gmail.com
Fri Feb 2 13:33:52 CET 2007

2007/2/2, Andreas Rust <rust at busche.de>:
> (As usual, just figured I only replied to Arnaud, not the list ... sigh)

so I'll reply to that one.

> Arnaud Quette wrote:
> >> Meaby, these parameters decrease as soon as they are programmed. Reading
> >> them back never gives the programmed value.
> >> ups.delay.shutdown and ups.delay.start behaves like this on our MGE UPS.
> >
> > that's it.
> >
> >> >The value reported by upsc "-1" appears odd to us as well.
> >>
> >> Default value ? or re-programmation failed ?
> >
> > default value.
> >
> > considering that any *.delay.* value is a timer (at least with mge
> > units), these are decreased until 0 (action is realised, ie shutdown),
> > and set back to -1 (not init'ed)
> >
> > Arnaud
> Interesting. Sounds reasonable, but also slightly confused me. :)

yep, there are rooms for improvement in this area ;-)

btw, prefer to use, if possible, the latest nut release (2.0.5 currently)

> How would the parameters have to be set up to shutdown outlet.1 or 2
> automatically when reaching 20% battery charge then?
> Something on .switch and .switchable?

this is what you seem to have already done, ie setting

no need to set the timer (*.delay.*)

note that the outlet will directly cut the power, so you need to
ensure that the things protected by this outlet are cleanly stopped
before (ie calling a hook to stop a computer, ...)

> As said, currently the server shuts down nicely and whenever it is off,
> we want to later shutdown outlet.1.

not sure to understand, but if the UPS is off, so does the outlets.
I need a bit more detail.

> Of course the server can just set the shutdown value for outlet.1 on
> shutdown, but is that the way to go for then?

right, it is

> Is the "ups.status: OL CHRG" output common on MGE aswell?

right, though it can lead to some misinterpretation on
low end UPSs

Linux / Unix Expert - MGE UPS SYSTEMS - R&D Dpt
Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
Debian Developer - http://people.debian.org/~aquette/
OpenSource Developer - http://arnaud.quette.free.fr/

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