From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1NxjtJ-0007Qo-VC for garchives@archives.gentoo.org; Fri, 02 Apr 2010 16:38:42 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 51A39E08EC; Fri, 2 Apr 2010 16:38:15 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 2C184E08EC for ; Fri, 2 Apr 2010 16:38:15 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id B88761B4023 for ; Fri, 2 Apr 2010 16:38:14 +0000 (UTC) X-Virus-Scanned: amavisd-new at gentoo.org X-Spam-Score: -2.985 X-Spam-Level: X-Spam-Status: No, score=-2.985 required=5.5 tests=[AWL=-0.386, BAYES_00=-2.599] Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7GZo8T1P3q7z for ; Fri, 2 Apr 2010 16:38:07 +0000 (UTC) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by smtp.gentoo.org (Postfix) with ESMTP id 23FC41B420B for ; Fri, 2 Apr 2010 16:38:06 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1NxjsZ-0000RB-Tf for gentoo-user@gentoo.org; Fri, 02 Apr 2010 18:37:55 +0200 Received: from adsl-69-234-177-132.dsl.irvnca.pacbell.net ([69.234.177.132]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 02 Apr 2010 18:37:55 +0200 Received: from w41ter by adsl-69-234-177-132.dsl.irvnca.pacbell.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 02 Apr 2010 18:37:55 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: walt Subject: [gentoo-user] Re: Duplicate identical Hard Disk Date: Fri, 02 Apr 2010 09:37:43 -0700 Message-ID: References: <20100401224820.GA5637@syscon4.inet> <20100402014000.GD5637@syscon4.inet> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: adsl-69-234-177-132.dsl.irvnca.pacbell.net User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.3a4pre) Gecko/20100402 Thunderbird/3.2a1pre In-Reply-To: X-Archives-Salt: 13f518e1-87e8-4f39-b3b8-99051ccb7838 X-Archives-Hash: 262c180045b010755609fa77f0f9a88e On 04/02/2010 07:59 AM, Mark Knecht wrote: > > 1) Yes, you can RAID partitions of drives. That's what I'm doing. You > can look at the Gentoo RAID/LVM Install guide to see an example of > using RAID0 and RAID1 on a single drive. > > http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml Very useful post, thanks. I'm just nitpicking here about the use of RAID0 on a single physical drive, which doesn't seem useful IIUC. RAID0 alternates stripes between two physical drives so that one disk can be reading/writing while the other disk's heads are seeking, no? If that is the case, then single-disk RAID0 will just be thrashing the heads back and forth between stripes on different partitions, making more work for itself than necessary. If I'm wrong about this, someone please correct me.