From owner-freebsd-questions@FreeBSD.ORG Sat Jun 16 00:01:00 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 50A51106566B for ; Sat, 16 Jun 2012 00:01:00 +0000 (UTC) (envelope-from gull@gull.us) Received: from mail-we0-f182.google.com (mail-we0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id D2EDC8FC08 for ; Sat, 16 Jun 2012 00:00:59 +0000 (UTC) Received: by werg1 with SMTP id g1so3092401wer.13 for ; Fri, 15 Jun 2012 17:00:58 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-originating-ip:in-reply-to:references:date :message-id:subject:from:to:content-type:content-transfer-encoding :x-gm-message-state; bh=/iMNJ07jx0UfZ07IMwYN+CHMOFdC9L9evSMJ8CIefXU=; b=dlPqQKtZRdfjMysAdyqNTvtS2Hhr/vAWtgqqSK4mQirm1SNt96lm6dE3QIO8DfO1oE u7SAZ9gtiux5zqOdkFH+is2W7A16AL/lT/d9/o7OLaEhV3vwa2h4dzPdlWsioAJOCwhl zZ21oog8lG3gOBiD3WvtTAt4Wx24bGZzMPFEHh1hied1jYjv4RSVLMymXWj6sJ/I8fyL 9VvAX+gikXS75f4O74YivjoyCBA/rWt+e45lbAnnwuEPmYpJz7oCt4WR0PmpixExqxCL +od2MLMen7fOVWft44MVCK7w21QKJOVZ40ShE6LdJ4VJhUGjoQ2KfvmF0q2NFFH/aZY/ PiXw== MIME-Version: 1.0 Received: by 10.180.102.228 with SMTP id fr4mr7999183wib.6.1339804858041; Fri, 15 Jun 2012 17:00:58 -0700 (PDT) Received: by 10.216.73.8 with HTTP; Fri, 15 Jun 2012 17:00:57 -0700 (PDT) X-Originating-IP: [128.95.17.228] In-Reply-To: <20120615235414.GA15957@hemlock.hydra> References: <201206151249.q5FCnnKF019002@mail.r-bonomi.com> <20120615160005.GB20814@hemlock.hydra> <20120615235414.GA15957@hemlock.hydra> Date: Sat, 16 Jun 2012 00:00:57 +0000 Message-ID: From: David Brodbeck To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Gm-Message-State: ALoCoQkADvnrNFoJhXQuJkC1HwgWsU4ZHCIw3lise21wHzpbzHduiiGpgLtLrCt78g2+zm2uz86L Subject: Re: Uptime [OT] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 16 Jun 2012 00:01:00 -0000 On Fri, Jun 15, 2012 at 11:54 PM, Chad Perrin wrote: > I don't consider the ability to stay up for a few minutes when there's a > brief blackout to be the most important function of a good UPS, even > though that's kinda the reason the things were invented in the first > place. =A0The most important function of such a thing is power > conditioning, which eliminates the problems of spikes and brownouts in > the supply of power from the utility company even when nothing dramatic > enough happens to actually crash a running machine right away. =A0Such > variability in power can be bad for both hardware and consistent, stable > running of software. Hard to get unless you have several kilobucks to spend on an online type UPS, though. I actually had one I got surplus, several years back, but the constant inverter buzz got old fast in a home environment.