Date: Tue, 3 Dec 1996 13:59:40 -0600 (CST) From: Joe Greco <jgreco@brasil.moneng.mei.com> To: pitlord@nrv.net Cc: michael@memra.com, freebsd-isp@freebsd.org Subject: Re: ups recommendations... Message-ID: <199612031959.NAA27149@brasil.moneng.mei.com> In-Reply-To: <32A3DC96.2231@nrv.net> from "Troy Settle" at Dec 3, 96 02:53:58 am
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> Michael Dillon wrote: > > > 4) I was told to keep my router off of the ups completely. The logic was > > > if my router was still up and the telephone company was down then it would > > > be more difficult for the router to reconnect. I don't quite follow this > > > line of thinking. After all the CO has power backups out the wazoo, so it > > > stands to reason it would be up. Anyway, what thoughts do you have on this > > > point? Keep the router on the ups or off? > > > > Keep it on. All your leased line customers with UPSes will be happy and > > some of your dialup customers will have UPSes or else their power will not > > be out so they will be happy that they can continue surfing. Consider > > keeping a 386 laptop running a RADIUS server on the UPS as well with the > > screen disconnected (install a switch). When the UPS runs out, the laptop > > battery will keep it going for another few hours. > > When the UPS goes out, what do you need a RADIUS server for? you're > terminal > servers, routers, and everything else depending on the UPS is gonna be > dead. Because you may have multiple UPS's? Around here, greatest priority is given to maintaining routers and other transit equipment. The moment the network dies, nothing else _matters_. I have three UPS "zones" covering my three racks, functionally divided. I am convinced it's not enough. Ideally, I want total redundancy, so that loss of any particular bit of hardware (including a UPS blowing a breaker, etc) does not fatally impair the operation of my core networks and services. Since most things are duplicated, this is not too hard to accomplish. ... JG
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