From owner-freebsd-questions@FreeBSD.ORG Fri Oct 12 09:09:23 2007 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 64F9A16A417 for ; Fri, 12 Oct 2007 09:09:23 +0000 (UTC) (envelope-from tedm@toybox.placo.com) Received: from mail.freebsd-corp-net-guide.com (mail.freebsd-corp-net-guide.com [65.75.192.90]) by mx1.freebsd.org (Postfix) with ESMTP id 1271913C448 for ; Fri, 12 Oct 2007 09:09:22 +0000 (UTC) (envelope-from tedm@toybox.placo.com) Received: from TEDSDESK (nat-rtr.freebsd-corp-net-guide.com [65.75.197.130]) by mail.freebsd-corp-net-guide.com (8.13.8/8.13.8) with SMTP id l9C99Lwh050385; Fri, 12 Oct 2007 02:09:22 -0700 (PDT) (envelope-from tedm@toybox.placo.com) From: "Ted Mittelstaedt" To: "Gary Kline" , "FreeBSD Mailing List" Date: Fri, 12 Oct 2007 02:09:29 -0700 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1914 In-Reply-To: <20071006231203.GA65801@thought.org> Importance: Normal Cc: Subject: RE: what kind of UPS will work best? 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: Fri, 12 Oct 2007 09:09:23 -0000 Hi Gary, I've owned and worked with at least a dozen different UPS brands. The best UPS I have - which I have right now powering several systems, is a Best Power Ferrups FE series. I don't think they make it anymore, sorry! As for the APC units - the APC standby units are everyone's whore. I have a collection of them that have failed for a variety of reasons. They have their problems. The worst part about the APC units are the batteries. If you decide to go APC, when it comes time to replace the batteries you -must- buy the most expensive lead acid gel cells you can find. You cannot put in the cheap Chinese batteries and have them last. The reason is that APC has deliberately calibrated their charging circuitry to fast-charge the batteries and they use fast charge curves that will destroy the cheap batteries very quickly. By contrast most everyone else in the industry uses feedback circuits that measure how fast the battery is taking a recharge and will not boil dry the cheap batteries. Last time I changed batteries in my Best unit was 9/2004 and they are still going strong and I used the cheap Chinese batteries. By contrast all the APC units I had which I got the same cheap batteries for, have dead batteries in them now. Now, it may be in the brand new APC's they have changed things. I noticed in the last new APC unit we sold that APC had switched to cheaper cells from Better Battery rather than the more spendy cells from Panasonic that they used in their older UPSes. But, I still think there are better deals to be had. > -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Gary Kline > Sent: Saturday, October 06, 2007 4:12 PM > To: FreeBSD Mailing List > Subject: what kind of UPS will work best? > > > > Hi Folks, > > Recently, a storm happened and the power surge blew me > off-line. Time to get serious about buying a UPS that will > handle my four main servers for at-most, a 10-second power > outage. After that, shut down my computers. It took me 90 > minutes of up and down and crawling around last time. That's > the *why*. Is there a best type to save me from this? Do any of > these power supplies come with scripts to shutdown a Unix {or > Linux} computer? Is there a UPS that is designed for heavy use > and a very short (5- to 10-second) uptime? I'll need one that can > interface thru the COM ports or the UBS port, if that is how > these devices work. > > tia, > > gary > > > -- > Gary Kline kline@thought.org www.thought.org Public Service Unix > http://jottings.thought.org http://transfinite.thought.org > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" >