Date: Tue, 6 Jun 2000 14:23:15 +0200 From: Willem Brown <willem@brwn.org> To: Jan Grant <Jan.Grant@bristol.ac.uk> Cc: Willem Brown <willem@brwn.org>, John <papalia@udel.edu>, freebsd-questions@freebsd.org Subject: Re: UPS sharing? Message-ID: <20000606142315.A227@denary.brwn.org> In-Reply-To: <Pine.GHP.4.21.0006061035590.28349-100000@mail.ilrt.bris.ac.uk>; from Jan.Grant@bristol.ac.uk on Tue, Jun 06, 2000 at 10:40:06AM %2B0100 References: <20000605233517.C31021@denary.brwn.org> <Pine.GHP.4.21.0006061035590.28349-100000@mail.ilrt.bris.ac.uk>
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Hi, I learned that lesson the hard way. :) Like not having the CPU switch and hubs on the UPS. Duh! Regards Willem Brown On Tue, Jun 06, 2000 at 10:40:06AM +0100, Jan Grant wrote: > On Mon, 5 Jun 2000, Willem Brown wrote: > > > Hi, > > > > Have a look at NUT (Network UPS Tools). You can get it at > > http://www.exploits.org/nut/ > > If I may offer one piece of obvious (but unfortunately > anecdotal) advice: when controlling the shutdown of multiple machines > from one UPS monitoring device, remember to ensure that the > communication between them will work in the event of a power > outage. This means either serial cables or make sure your hub/switch is > plugged into a UPS too :-) > > jan (had a DOH moment - fortunately it only took down a news server) > > PS. I don't think splitting the signal will work; as I understand it > there are a number of request/response mechanisms for getting > performance details off the UPS. I don't think a split serial signal > will work in that case. > > > -- > jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ > Tel +44(0)117 9287163 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk > Whenever I see a dog salivate I get an insatiable urge to ring a bell. > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > > -- /* =============================================================== */ /* Linux, FreeBSD, NetBSD, OpenBSD. The choice is yours. */ /* =============================================================== */ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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