From owner-freebsd-stable@FreeBSD.ORG Thu Jun 3 21:04:40 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 5E3A0106566B for ; Thu, 3 Jun 2010 21:04:40 +0000 (UTC) (envelope-from spawk@acm.poly.edu) Received: from acm.poly.edu (acm.poly.edu [128.238.9.200]) by mx1.freebsd.org (Postfix) with ESMTP id ED1868FC0A for ; Thu, 3 Jun 2010 21:04:38 +0000 (UTC) Received: (qmail 6618 invoked from network); 3 Jun 2010 21:04:37 -0000 Received: from unknown (HELO ?10.0.0.170?) (spawk@128.238.64.31) by acm.poly.edu with AES256-SHA encrypted SMTP; 3 Jun 2010 21:04:37 -0000 Message-ID: <4C0818DB.1050101@acm.poly.edu> Date: Thu, 03 Jun 2010 17:04:27 -0400 From: Boris Kochergin User-Agent: Thunderbird 2.0.0.24 (X11/20100330) MIME-Version: 1.0 To: Jeremy Chadwick References: <201006032136.46625.u.drolshagen@t-online.de> <20100603204025.GA17762@icarus.home.lan> In-Reply-To: <20100603204025.GA17762@icarus.home.lan> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable , Ulrich Drolshagen 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 21:04:40 -0000 Jeremy Chadwick wrote: > 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 > While it probably won't be done in time to be immediately useful to the original poster, I am working on a GEOM-based ataraid replacement that will behave better. -Boris