Date: Tue, 6 Jun 2000 19:24:58 -0700 From: "Donald Fast" <djfast@telus.net> To: "Jan Grant" <Jan.Grant@bristol.ac.uk>, "Willem Brown" <willem@brwn.org> Cc: "John" <papalia@udel.edu>, <freebsd-questions@freebsd.org> Subject: RE: UPS sharing? Message-ID: <000201bfd027$939b6580$9232e8d8@bc.hsia.telus.net> In-Reply-To: <Pine.GHP.4.21.0006061035590.28349-100000@mail.ilrt.bris.ac.uk>
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Hi, > -----Original Message----- > From: owner-freebsd-questions@FreeBSD.ORG > [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Jan Grant > Sent: Tuesday, June 06, 2000 2:40 AM > To: Willem Brown > Cc: John; freebsd-questions@freebsd.org > Subject: Re: UPS sharing? > > > 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. APC has an option to split the signal from the UPS to shutdown many computers. http://www.apcc.com/products/management/multiple_shutdown.cfm excerpt: Data Protection for Multiple Servers on one UPS If you’re managing multiple servers, particularly in a mixed OS environment, UPS Interface Expander Card and Share-UPS are essential tools to properly manage signaling servers from a single UPS. Shutdown multiple servers on one UPS Connect up to 8 completely OS-independent servers to a single UPS with Share-UPS. UPS Interface Expander Card Provides two additional ports to facilitate safe system shutdown and advanced UPS management of up to three servers from one UPS. All three servers can be running different operating systems, making it ideal for multiple OS environments. HTH donald fast djfast@telus.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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