Date: Wed, 27 Aug 1997 12:38:06 +1000 From: Hugh Blandford <hugh@island.net.au> To: questions@FreeBSD.ORG Subject: Re: Smart UPS -- any experts out there? Message-ID: <3.0.1.32.19970827123806.00758798@mail.island.net.au> In-Reply-To: <34034061.C9A222E9@ifx.net> References: <XFMail.970826165136.conrads@neosoft.com>
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We have a smart ups and it works fine. When the power goes out the battery kicks in and keeps things running. However, when the ups is about to run out of battery it signals the servers which then do a shutdown. On our system here that could be upto two and a bit hours later. The ups is then turned off and when the mains is restored it reboots the machines. Regards, Hugh. At 21:45 26/08/97 +0100, you wrote: >Conrad Sabatier wrote: > >> I'm seriously considering buying a UPS, as the power in my area seems >> to be >> prone to occasional "blinks" of a second or two. Someone mentioned >> getting >> a "smart" UPS that I could interface to FreeBSD to, for instance, >> perform >> an automatic clean shutdown on power failure. > ><<SNIP SNIP>> > >I have a triplitte internet 450 VA "dumb" UPS. It works great for small >blips, and minor brownouts. I'm not sure you would want a smart ups to >be shutting down your FreeBSD everytime you get a power blip if your >power quickly comes back. Just pick what you really care about not >going out on a blip and leave everything else on non-UPS power. I bet >my FreeBSD system would stay up for a long power outage with 450 VA. > >Jim... > > >
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