Date: Fri, 15 Jun 2012 23:47:55 +0000 From: David Brodbeck <gull@gull.us> To: freebsd-questions@freebsd.org Subject: Re: Uptime [OT] Message-ID: <CAHhngE1CudsAb_OHzagSOAkFrMN3ak=7rvANKdBRuXedF%2BaW3Q@mail.gmail.com> In-Reply-To: <20120615160005.GB20814@hemlock.hydra> References: <op.wfxecjm234t2sn@cr48.lan> <201206151249.q5FCnnKF019002@mail.r-bonomi.com> <20120615160005.GB20814@hemlock.hydra>
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On Fri, Jun 15, 2012 at 4:00 PM, Chad Perrin <perrin@apotheon.com> wrote: > No power conditioning (implied by no UPS) is nothing to brag about. If your utility power is very -- common now in places with buried utilities -- a UPS of the non-enterprise variety can actually make reliability *worse*. I've found that standby-type UPSs (like the popular APC BackUPS and SmartUPS units) will drop the load at the slightest power blip once the batteries go bad, while machines connected directly to utility power will often ride out short blips. It's especially insidious on the BackUPS units because the only way to test the battery is to hit the test button and see if the load drops. ;) When I lived in a place that had a power outage once a week, I used a UPS. Now that I live in a place where I get maybe one power outage a *year*, I'm better off without out.
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