From owner-freebsd-questions@FreeBSD.ORG Sat Nov 10 22:34:19 2007 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2271C16A419 for ; Sat, 10 Nov 2007 22:34:19 +0000 (UTC) (envelope-from peo@intersonic.se) Received: from neonpark.inter-sonic.com (neonpark.inter-sonic.com [212.247.8.98]) by mx1.freebsd.org (Postfix) with ESMTP id D0D0E13C4AC for ; Sat, 10 Nov 2007 22:34:18 +0000 (UTC) (envelope-from peo@intersonic.se) X-Virus-Scanned: amavisd-new at inter-sonic.com Message-ID: <473631DA.7060308@intersonic.se> Date: Sat, 10 Nov 2007 23:34:02 +0100 From: Per olof Ljungmark Organization: Intersonic AB User-Agent: Thunderbird 2.0.0.6 (X11/20071103) MIME-Version: 1.0 To: Christopher Key References: <47348BDE.9090206@cam.ac.uk> <4734A4DE.5020705@hdk5.net> <47361B0D.6060608@cam.ac.uk> In-Reply-To: <47361B0D.6060608@cam.ac.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: questions@freebsd.org, noc@hdk5.net Subject: Re: OT: Looking for some inpiration with UPS setup 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, 10 Nov 2007 22:34:19 -0000 Christopher Key wrote: > NetOpsCenter wrote: >> Christopher Key wrote: >>> >>> I've a FreeBSD fileserver, a solid state router (Linksys box running >>> OpenWRT) and a couple of gigabit switches that I'd like to move onto >>> a UPS (I'm primarily looking at the APC Smart-UPS line). >>> >> I have a similar setup in my noc shed. >> >> I got 2 old APC units that a client had replaced and attached a 120 >> AMP stationery batteries to them. They will power the switch, 3 >> servers and KVM switches and a monitor for 6 hours uninterrupted. >> It's not pretty to look at but is stable and does the job nicely. >> > > I'm rather pressed for space, this gear is in a tiny cupboard also > storing the traditional contents of a utility room and garage. I'd > manged to allow myself 1 shelf, 30cm x 50cm x 20cm for the UPS gear. > That might just be enough space to squeeze in a UPS and a 120Ah SLA > battery, which would keep both up for at least 6h, hopefully enough to > span most outages. For outages longer than that, I'd probably not mind > losing my DHCP leases anyway. Are there any specific requirements for > the attached batteries, or will any 12V SLA battery suffice? It's just > a shame that no UPS units offer a WOL option for waking up attached > equipment. Hi, I wonder why it is such a big deal to keep the leases? Why not asssign static IP's to everything instead if it is a small setup? Just curious... --per