From owner-freebsd-stable@FreeBSD.ORG Thu Jun 3 20:40:27 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A7E481065670 for ; Thu, 3 Jun 2010 20:40:27 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta07.emeryville.ca.mail.comcast.net (qmta07.emeryville.ca.mail.comcast.net [76.96.30.64]) by mx1.freebsd.org (Postfix) with ESMTP id 8F1EE8FC12 for ; Thu, 3 Jun 2010 20:40:27 +0000 (UTC) Received: from omta22.emeryville.ca.mail.comcast.net ([76.96.30.89]) by qmta07.emeryville.ca.mail.comcast.net with comcast id RSX31e0031vN32cA7YgTXS; Thu, 03 Jun 2010 20:40:27 +0000 Received: from koitsu.dyndns.org ([98.248.46.159]) by omta22.emeryville.ca.mail.comcast.net with comcast id RYgS1e0023S48mS8iYgSbC; Thu, 03 Jun 2010 20:40:26 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id EFDC49B418; Thu, 3 Jun 2010 13:40:25 -0700 (PDT) Date: Thu, 3 Jun 2010 13:40:25 -0700 From: Jeremy Chadwick To: Ulrich Drolshagen Message-ID: <20100603204025.GA17762@icarus.home.lan> References: <201006032136.46625.u.drolshagen@t-online.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201006032136.46625.u.drolshagen@t-online.de> User-Agent: Mutt/1.5.20 (2009-06-14) Cc: freebsd-stable Subject: Re: Support for ICH sata raid controler X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Jun 2010 20:40:27 -0000 On Thu, Jun 03, 2010 at 09:36:46PM +0200, Ulrich Drolshagen wrote: > we are about to aquire a new Primergy TX150. I can not find any information on > support of the Intel ICHx sata raid controller in the Hardware Notes of 8- > Stable. Does anybody know? All revisions of the ICHxx series are supported (ICH3 to ICH10 I can confirm). If you plan on using the RAID functionality of the chipset (otherwise known as "MatrixRAID" or "Matrix Storage Technology"), don't bother[1]. Instead, enable AHCI on the controller (usually in the system BIOS) and use one of FreeBSD (software/OS-level) RAID/RAID-like implementations such as gmirror, gvinum, or ZFS. I'd also recommend using ahci.ko instead of ataahci.ko for AHCI support. achi.ko provides a AHCI/SATA-to-CAM translation layer (which means you gain benefits like NCQ; disks show up as adaX), while ataahci.ko (the default) does not use CAM (and does not support NCQ; disks show up as adX). You can use ahci.ko by placing 'ahci_load="yes"' in /boot/loader.conf, or when booting a FreeBSD installation medium, dropping to the loader prompt and typing "load ahci" then "boot". [1]: http://en.wikipedia.org/wiki/Intel_Matrix_RAID -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |