Subject: Re: Installing a UPS for a NetBSD server... software and procedures?
To: Martin Husemann <>
From: Geert Hendrickx <>
List: netbsd-users
Date: 04/20/2007 09:21:59
On Fri, Apr 20, 2007 at 08:48:28AM +0200, Martin Husemann wrote:
> I use APC UPSes a lot, and pkgsrc/sysutils/ups-nut. I like this pkg because
> it allows me to connect multiple machines to the same ups, have one of
> them run the ups monitoring server and the others clients. When power fails,
> the clients shutdown first, then the server. I only have UPSes with serial
> connection so far, I think people had problem getting the USB connected ones
> to work - but that should be a solvable problem if you are ready
> to do a bit of hacking on the pkg (or wait for success stories).
> There is a small window where power can return (after the machines shut down
> and before the ups shuts off), but my power failures in general have been
> very short (ups survives), or significantly longer than battery time, so
> this was never a problem.

Same here; SMART UPS from APC powering multiple networked machines (and their
switches of course), serially attached to one, combined with Network UPS Tools
(sysutils/ups-nut in pkgsrc).  No bad experiences.  I also second the comment
about the power race time window.