Date: Fri, 12 Jun 1998 01:58:20 -0700 (PDT) From: Doug White <dwhite@resnet.uoregon.edu> To: Jesse <j@lumiere.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: upsd, automatic shutdown at low batt Message-ID: <Pine.BSF.3.96.980612015217.11999z-100000@resnet.uoregon.edu> In-Reply-To: <Pine.BSF.3.96.980609023454.28015A-100000@leaf.lumiere.net>
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On Tue, 9 Jun 1998, Jesse wrote:
> I recently setup upsd to work with my APC Smart UPS 2200. It seems to poll
> the system okay (after I disabled "poll status") and reacts to line
> failures and restorations. However, from looking at the config file I've
> only been able to figure out how to make the system shutdown after X
> amount of time has passed since the UPS went to battery. I'd much rather
> have the system shutdown when the battery gets down to like 5% charge or X
> minutes before out-of-battery. Has anyone figured out any way to do this?
You can polll that info out of the UPS, then test those registers against
a constant. I think it looks like this when used:
on "recharge" <= 5.0 {
# do shutdown
}
You should know how long your systems can run on battery power. If not,
do a test. :)
> Also, is load a percentage?
Yes. I think it's a percentage of load draw, ie 50% == ~7.5amps.
Obviously that impacts your bettery runtime.
Doug White | University of Oregon
Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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