From owner-freebsd-isp Mon Sep 9 18:27:41 2002 Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4CD7737B400 for ; Mon, 9 Sep 2002 18:27:39 -0700 (PDT) Received: from procyon.firepipe.net (procyon.firepipe.net [198.78.66.151]) by mx1.FreeBSD.org (Postfix) with ESMTP id ACC6F43E65 for ; Mon, 9 Sep 2002 18:27:38 -0700 (PDT) (envelope-from will@csociety.org) Received: by procyon.firepipe.net (Postfix, from userid 1000) id 971002143F; Mon, 9 Sep 2002 18:27:28 -0700 (PDT) Date: Mon, 9 Sep 2002 18:27:28 -0700 From: Will Andrews To: Marcin Jessa Cc: freebsd-isp@FreeBSD.ORG Subject: Re: RAIDframe Message-ID: <20020910012728.GC91593@procyon.firepipe.net> Mail-Followup-To: Marcin Jessa , freebsd-isp@FreeBSD.ORG References: <65465.80.232.16.66.1031539613.squirrel@www.yazzy.org> <001101c2582c$5d6e24e0$82bf83d5@kandy> <64826.80.232.16.66.1031617429.squirrel@www.yazzy.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <64826.80.232.16.66.1031617429.squirrel@www.yazzy.org> User-Agent: Mutt/1.4i Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Tue, Sep 10, 2002 at 02:23:49AM +0200, Marcin Jessa wrote: > Vinum is propably not suitable for the purpose. > It will make both my HD's fail when one of them is down causing a complete > loss of data. > I use Raid 1 becouse I only have 2 HD's that I can stripe and becouse RAID > 5 would be kinda pointless with IDE drives. RAID 5 has nothing to do with the medium. It merely means that one drive's worth of parity is used (i.o.w., there is one hot spare drive with RAID 5). However, you are correct that it does not make sense in your situation, since you only have 2 HDDs. Thus, if performance is not a factor, then by all means use RAID 1. However, RAID 5 works perfectly fine with IDE drives. I have seen it with a 8x160GB ATA-133 RAID 5 FS (3ware Escalade 7500-8). Keep in mind, however, that you must add another pair of HDDs to expand your storage if you use RAID 1. That's not true with RAID 5, however. I'm not sure what gives you the impression that vinum would fail when the volume is configured in RAID 1 mode. RAID 1 is mirroring, not striping. And striping (RAID 0) gives you zero protection from drive failure. re. -- wca To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message