From owner-freebsd-current@FreeBSD.ORG Sun Feb 15 06:56:47 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0FED116A4CE for ; Sun, 15 Feb 2004 06:56:47 -0800 (PST) Received: from spider.deepcore.dk (cpe.atm2-0-53484.0x50a6c9a6.abnxx9.customer.tele.dk [80.166.201.166]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5760643D1F for ; Sun, 15 Feb 2004 06:56:46 -0800 (PST) (envelope-from sos@DeepCore.dk) Received: from DeepCore.dk (sos.deepcore.dk [194.192.25.130]) by spider.deepcore.dk (8.12.10/8.12.10) with ESMTP id i1FEvJ0G043406; Sun, 15 Feb 2004 15:57:19 +0100 (CET) (envelope-from sos@DeepCore.dk) Message-ID: <402F88AB.8010003@DeepCore.dk> Date: Sun, 15 Feb 2004 15:56:43 +0100 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.6b) Gecko/20040126 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: gabriel_ambuehl@buz.ch References: <1123980863.20040215144711@buz.ch> <402F7E61.1060304@DeepCore.dk> <234276322.20040215153634@buz.ch> In-Reply-To: <234276322.20040215153634@buz.ch> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-mail-scanned: by DeepCore Virus & Spam killer v1.3 X-Mailman-Approved-At: Mon, 16 Feb 2004 05:19:49 -0800 cc: current@freebsd.org Subject: Re: SI3112A SATA controller RAID support? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Feb 2004 14:56:47 -0000 Gabriel Ambuehl wrote: > Hello Søren, > > Sunday, February 15, 2004, 3:12:49 PM, you wrote: > > > >>>I'm wondering if there's no RAID support for the SI3112A in current >>>as my drives in a RAID1 array show up as ad4 and ad6 but not as ar0 in >>>the setup. So if I want to use those SATA drives in a RAID1 array, do >>>I really need to get another controller (presumably Highpoint based) >>>(software RAID is out of question)? >> >>All the ATA "RAID controllers" in this category are software based. >>Support is depended on the BIOS type, as all that is needed is to know >>the format of the RAID metadata stored on disk. Currently only HPT and >>Promise formats are known, but I have code for AMI and Intel in the >>works (but far from usable yet)... > > > Then how come I can rebuild arrays on those pseudo RAID controllers but > not those created with atacontrol directly (i.e. pure software)? (Or am > I just doing something wrong?) As I said, the RAID metadata are not understood by the ATA driver, so if you use atacontrol to create a RAID it will put our generic metadata on the disk(s) which the BIOS doesn't understand, you have two incompatible software RAID setups... There is NO hardware RAID functionality in the sii3112a whatsoever. However there are *alot* of bugs in that silicon, making it the most crappy SATA chip in existance, but what can you expect from the company that brought us the CMD640 etc ;) -- -Søren