From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.43) id 1DqlwG-0002xk-P4 for garchives@archives.gentoo.org; Fri, 08 Jul 2005 06:02:17 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.4/8.13.4) with SMTP id j6860xbV017905; Fri, 8 Jul 2005 06:00:59 GMT Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.201]) by robin.gentoo.org (8.13.4/8.13.4) with ESMTP id j685uleZ025678 for ; Fri, 8 Jul 2005 05:56:47 GMT Received: by wproxy.gmail.com with SMTP id i22so363264wra for ; Thu, 07 Jul 2005 22:56:52 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:reply-to:user-agent:x-accept-language:mime-version:to:subject:references:in-reply-to:content-type:content-transfer-encoding:from; b=ZbfV69FTcll6J16eXeL7DxHpMGXTBGNv0mtQOEI2QWqVTqfVyUzqz81BuhF2noaGeVkOc9HsxO+6KI2ALVwy051NTzlChycoByZF9XktX4YpgzCNA4j1K+SsgGn0ZYbVgYaaMxp+wvFKcTOhhso7mLfLKSVuMpD1QNsYo70P8xc= Received: by 10.54.36.67 with SMTP id j67mr1424450wrj; Thu, 07 Jul 2005 22:56:52 -0700 (PDT) Received: from ?192.168.0.2? ([4.245.143.46]) by mx.gmail.com with ESMTP id 66sm2162063wra.2005.07.07.22.56.51; Thu, 07 Jul 2005 22:56:52 -0700 (PDT) Message-ID: <42CE15A0.3030105@gmail.com> Date: Fri, 08 Jul 2005 01:56:48 -0400 User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Is it possible to mirror 2 drives, that are currently striped in LVM2? References: <1a7a8cea7b5c75d4afe758fdc2498279@gmail.com> <1120801610.29226.62.camel@neuromancer.home.net> In-Reply-To: <1120801610.29226.62.camel@neuromancer.home.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit From: Colin X-Archives-Salt: 92f5c214-4f2b-47cc-92b3-f11568f059fc X-Archives-Hash: 4c0a5a47db1b23711ca3ed95b2ef9e5b Ow Mun Heng wrote: >On Thu, 2005-07-07 at 17:50 +0200, Jakub Krajcovic wrote: > > >>Hi Guys, >> >>the subject says it all, but i'll go into more detail now, if anyone >>would be interested in helping. I currently have my system installed on >>2 40GB IDE drives. They are in an LVM volumegroup, and the 2 drives are >>striped. What i need to do is transform this "striped disk cluster" >>into a mirror. (preferably using the most cheapest and painless >>method). I kind of know my way around LVM, so i don't really need a >>_totally_ detailed answer, but i need to know, if this that i am trying >>to accomplish is >>a) possible >>b) what are the steps that i should follow in order to do this? >> >>I was thinking like this: use pvmove or something to move all of the >>pv's from one disk to the other, then reduce the volumegroup (remove >>the disk eg physical volume from it) add it as a mirror... >> >> > >Seems to me the best way to do this would be a third Disk. Is this an >option?? > Personally, I'd just get two more disks and turn it into a RAID 0+1 setup. If you've got the space, the money and the Molex connectors, I'd go for it. Or just get one more disk, backup your data, create a three-drive RAID 5 volume and then copy it all back. RAID 0+1 would be easier to setup, require much less overhead and have more fault-tolerance than a three-disk RAID 5 setup. However, it's more expensive (you need two more disks instead of one more) and it's not as cool-sounding as "RAID 5." :-P -- Colin -- gentoo-user@gentoo.org mailing list