Date: Thu, 12 Jul 2001 22:24:06 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Mixtim" <mixtim@home.com> Cc: "Jorge Ramirez" <ijand2@yahoo.com>, "FreeBSD Questions" <freebsd-questions@FreeBSD.ORG> Subject: RE: UPS for freebsd server Message-ID: <000d01c10b5c$09638b60$1401a8c0@tedm.placo.com> In-Reply-To: <20010712093802.A7369@home.com>
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>-----Original Message----- >From: Mixtim [mailto:mixtim@home.com] >Sent: Thursday, July 12, 2001 6:38 AM >To: Ted Mittelstaedt >Cc: Jorge Ramirez; FreeBSD Questions >Subject: Re: UPS for freebsd server > > >On Wed, Jul 11, 2001 at 10:26:57PM -0700, Ted Mittelstaedt wrote: >> Get an APC BackUPS with dumb signaling. There's a software program >> for the SmartUPS and the smart signalling but it requires much fiddling and >> tweaking to work. > >Every APC "smart" USP supports dumb signaling as well. The docs for the >Simple Signaling Daemon (ssd) on the APC web page tells you how to put >your UPS into "dumb" mode. You have to use a different cable but the SSD >docs also mention that. > Quite true but the SmartUPS is more expensive than the BackUPS also you have to special order the dumb cable because the smartups only ships with the smart cable. I myself am also quite interested in other folks experiences with different brands of UPS's. The experience I've had with UPS's is that 90% of the time they fail because the battery has gone south and that usually happens after 2 years of continuous service. It doesen't appear to me that there's much difference in the electronics and that most computer power supplies have large enough capacitors in them to survive a 200 millisecond power loss without rebooting, plenty of time for even the cheapest UPS's to switch over. The big difference seems to be that the cheap UPS's lack "low battery" signalling wires. I'd be interested in finding a cheap UPS that has a low battery signal port. Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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