From owner-freebsd-isp Wed Feb 21 12:32:47 2001 Delivered-To: freebsd-isp@freebsd.org Received: from oneway.com (daedal.oneway.com [205.252.89.49]) by hub.freebsd.org (Postfix) with ESMTP id 7683537B401 for ; Wed, 21 Feb 2001 12:32:44 -0800 (PST) (envelope-from jay@oneway.com) Received: from localhost (jay@localhost) by oneway.com (8.9.3/8.9.3) with ESMTP id PAA18439; Wed, 21 Feb 2001 15:35:22 -0500 (EST) (envelope-from jay@oneway.com) Date: Wed, 21 Feb 2001 15:35:22 -0500 (EST) From: Jay Kuri To: Jim Sander Cc: freebsd-isp@FreeBSD.ORG Subject: RE: Redundancy... final(?) summary In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > P.S. Random thought... the other way to attack this problem is to reduce > consumption. Single-chip servers with flash storage could be > powered by flashlight batteries. :) Funny you should mention that. I was thinking about this as I read this thread. A while back (about a year ago, now) I did this. We built a AMD powered server with flash drive and a battery-backed power supply. It worked pretty well and had a tiny power draw. We used these ATX-style power supplies with a built in battery backup. They were rated to run a 'normal' server (with hard drive AND monitor) for like an hour. On our machines they ran much longer. They had a Serial interface so you could tell when they switched to battery and when they were likely to run out of juice. Very neat. They ran great... and I don't think we had an outage that lasted longer than the batteries... I think about 4 hours was the top I saw. I don't work there any more, but I managed to dig up the info... so here it is if you are interested: http://ipps.amsdell.com/ 877-267-3355 IPPSCommander - part number IPAM-002 Ours was customised a bit (different power connector) but they have a 'standard' version. Jay - - - - - - - - - - - - - - - - - - - - - - - - - UNIX: because reboots are for hardware upgrades Jay Kuri jay@oneway.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message