From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1KqYk4-0002S3-Oz for garchives@archives.gentoo.org; Thu, 16 Oct 2008 19:42:41 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 631DDE036E; Thu, 16 Oct 2008 19:42:40 +0000 (UTC) Received: from yw-out-1718.google.com (yw-out-1718.google.com [74.125.46.156]) by pigeon.gentoo.org (Postfix) with ESMTP id 41349E036E for ; Thu, 16 Oct 2008 19:42:40 +0000 (UTC) Received: by yw-out-1718.google.com with SMTP id 5so48448ywm.46 for ; Thu, 16 Oct 2008 12:42:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:sender :to:subject:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references :x-google-sender-auth; bh=N6d/BXjYOl6Z3gIsJjT+iIqEYwTIyDq1k6o7YoAXS1s=; b=Y3xsx8paTcsrhaS+qmJ67Y0MDsdHLeBB+i4FSaIrZZGknjBJZNbjeKJ1PkUJLPacCQ SJgQwY3hnv1NP60AvKVNCB/TTUBowAM5/8TdonYaSy187C46VFPp+gujHFTb85eVTo+h dD7BATp1gjgdKqbZcPNynZhKHwgtmqOJZhYcI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references:x-google-sender-auth; b=et2r0mSERO8N3NmFKAY2Houv6+Jrk5V6wFiK+lI0A0cIknt/Z8Bo91uQafk+P53Deh T7FRlv9dgPN36BBu1r6ejCmvTzjZwlmI1L5g7rnWmkmOQXdYWHZTn0L/bq6+NBQS/MFA KyarI6tWjsTQQRvarR6FSQzNJ1WvocdN1i64c= Received: by 10.142.185.13 with SMTP id i13mr911289wff.219.1224186158569; Thu, 16 Oct 2008 12:42:38 -0700 (PDT) Received: by 10.142.215.4 with HTTP; Thu, 16 Oct 2008 12:42:38 -0700 (PDT) Message-ID: <58965d8a0810161242k72a7e98dj9d4297a4ff082d81@mail.gmail.com> Date: Thu, 16 Oct 2008 14:42:38 -0500 From: "Paul Hartman" Sender: paul.hartman@gmail.com To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Is an Intel motherboard RAID better or worse than software RAID? In-Reply-To: <48F5EB5C.4020402@siemens.com> 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=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <48F5EB5C.4020402@siemens.com> X-Google-Sender-Auth: bd42d2a2c3d5fcfd X-Archives-Salt: 9800e25b-0d19-4456-a79a-6d8a34d70531 X-Archives-Hash: 3acb82e32d0dbed85004ee0ca86dab39 On Wed, Oct 15, 2008 at 8:08 AM, Wolfgang Liebich wrote: > Hi, > I'm in the process of setting up a new private computer. I've bought one > with two drives b/c I wanted to setup a RAID system - RAID1 for > important partitions, RAID0 for scratch files maybe. > Additionally I would like to use LVM2 --- on my work PC I've grown to > like the flexibility of that. > The Intel DQ35JO motherboard now supports some kind of mobo based RAID. > Is it better to use this HW raid, or to ignore that and use only the > linux kernel's software RAID. > Additionally the LVM2 utilities seem to have limited mirroring/striping > capabilities of their own - I only want to use RAID levels 0 and 1 > anyways -- would LVM's methods be better here? Hi, I've got 4 regular 500gb SATA drives in a linux software RAID5 (BIOS fakeraid disabled), not using LVM, and with a AES dmcrypt on top of it, and the performance is really good in my opinion. The encrypted RAID has a faster read speed than a single, non-RAID, non-encrypted SATA drive of the same model. Obviously with the encryption & parity calculations the writes are not as fast, but it's still 25 megabytes per second write speed which seems pretty good to me. I have a Core 2 E6600 (overclocked to 3ghz). The time to rebuild the RAID after a system failure for this 4x500gb is about 90 minutes. Good luck, Paul