From mlchang@u.washington.edu Fri Mar 7 22:49:40 2003 Received: from mxu2.u.washington.edu (mxu2.u.washington.edu [140.142.33.7]) by lists.u.washington.edu (8.12.1+UW03.03/8.12.1+UW03.02) with ESMTP id h286neCK028146 for ; Fri, 7 Mar 2003 22:49:40 -0800 Received: from maxwell-a.ee.washington.edu (maxwell-a.ee.washington.edu [128.95.42.91]) by mxu2.u.washington.edu (8.12.1+UW03.03/8.12.1+UW03.02) with ESMTP id h286ncCd022992 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Fri, 7 Mar 2003 22:49:38 -0800 Received: from brain.ee.washington.edu (brain.ee.washington.edu [128.95.30.70]) by maxwell-a.ee.washington.edu (8.12.8/8.12.8) with ESMTP id h286nb4S024136 for ; Fri, 7 Mar 2003 22:49:37 -0800 Received: (from mchang@localhost) by brain.ee.washington.edu (8.11.6/8.11.6) id h286nb928796 for linux@u.washington.edu; Fri, 7 Mar 2003 22:49:37 -0800 (PST) Date: Fri, 7 Mar 2003 22:49:37 -0800 From: "Mark L. Chang" To: UW Linux Group Subject: Re: ide raid? Message-ID: <20030308064937.GA28303@brain.ee.washington.edu> References: <20030308032327.GA9145@bunny.darktech.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030308032327.GA9145@bunny.darktech.org> X-EE-Scanned: by amavisd-milter Hey, that's a great idea for the next meeting. I could do a talk (short) on software raid on Linux. I just got done (well, it's mkfs-ing now) setting up my second RAID box at home. First was 240gb and this one is another 1/3 of a terabyte. It's interesting, and I could definitely talk about it if asked. Mark On Fri, Mar 07, 2003 at 07:23:27PM -0800 or thereabouts, Evan Martin wrote: > All this talk of a mirror reminds me: what are my options for making > a largish IDE RAID? When you're doing striping with parity (which seems > to give you reliability and the most usable space), having more disks > reduces the amount of space you, uh, "waste". With three disks, 1/3 of > your space is parity data, etc... > > I have an old computer that functions as a great server. I'd like to > stuff about 200gb (+reliability) into it, but there are a few problems: > - IDE channels. I could always through in an IDE controller, though... > - Space/heat. It's a small box, and those extra drives will be hot. > - Power. The power supply is pretty weak and probably won't be able to > handle a huge load. > > Those last two problems point at some sort of external enclosure. Has > anyone seen or made something like this for cheap? How does it work > with Linux? (Ideally, I'd stick my drives into some box, plug it in, > plug it in to my server, and suddenly I'd have /dev/hdd through /dev/hdg > or so, ready for my RAIDing to be done in software.) > > -- > Evan Martin > martine@cs.washington.edu > http://neugierig.org -- I swear to drunk I'm not God! .