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Date:      Tue, 06 Jun 2000 22:41:40 -0400
From:      John <papalia@udel.edu>
To:        "Donald Fast" <djfast@telus.net>, "Jan Grant" <Jan.Grant@bristol.ac.uk>, "Willem Brown" <willem@brwn.org>
Cc:        <freebsd-questions@freebsd.org>
Subject:   RE: UPS sharing?
Message-ID:  <4.3.1.2.20000606224030.00aded20@mail.udel.edu>
In-Reply-To: <000201bfd027$939b6580$9232e8d8@bc.hsia.telus.net>
References:  <Pine.GHP.4.21.0006061035590.28349-100000@mail.ilrt.bris.ac.uk>

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A-yup... I read up on the sharing device just yesterday. Seems to be the 
ticket.  Even the 'extra' $80 expense for the card is acceptable, since it 
sure beats corrupting file systems :)

Thanks to all who responded!!!
--John

>Hi,
>
> >
> > 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



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