From owner-freebsd-stable@FreeBSD.ORG Tue Nov 30 06:57:46 2004 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AF92416A4CE for ; Tue, 30 Nov 2004 06:57:46 +0000 (GMT) Received: from mail5.speakeasy.net (mail5.speakeasy.net [216.254.0.205]) by mx1.FreeBSD.org (Postfix) with ESMTP id 76FFD43D49 for ; Tue, 30 Nov 2004 06:57:46 +0000 (GMT) (envelope-from omniBSD@speakeasy.net) Received: (qmail 8860 invoked from network); 30 Nov 2004 06:57:45 -0000 Received: from acute.anhedonia.com (HELO [10.20.30.10]) (omni@[66.93.24.213]) (envelope-sender ) by mail5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 30 Nov 2004 06:57:45 -0000 Message-ID: <41AC1A0D.1020705@speakeasy.net> Date: Tue, 30 Nov 2004 00:58:21 -0600 From: Ash User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20041104 Netscape/7.1 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Mike Jakubik References: <4013.172.16.0.200.1101790160.squirrel@172.16.0.200> In-Reply-To: <4013.172.16.0.200.1101790160.squirrel@172.16.0.200> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: stable@freebsd.org Subject: Re: No RAID for VT8237? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Nov 2004 06:57:46 -0000 Mike Jakubik wrote: > Can someone tell my why there is no RAID support for the VT8237 SATA > controller, when the chipset is listed as supported in the ata man page? > I've wasted enough money and time buying hardware and hoping that a > particular onboard ATA raid chips is supported. I understand that the > manufacturers may not release the data required to write a driver, and > that they keep changing specs around, but if we could at least have > documentation stating which of the common onboard raid chipsets are > supported. The motherboard in question is a gigabyte GA-K8VM800M. FreeBSD > 5.3 detects the chipset, but shows the drives individually, not as an ar > array. > > Mike, I'm not sure what the status of RAID on a VT8237 is, but is it possible the array(s) is(are) there and you are not noticing them? Most of these lower end PATA/SATA "RAID" controllers are doing their work in software. As such you will be able to see (not to mention mount, modify, etc...) the physical RAID components in addition to the actual array. For example, I have a Promise controller in my system with two RAID 1 arrays defined: ~ > ls /dev/ar? /dev/ar0 /dev/ar1 ~ > sudo atacontrol status ar0 ar0: ATA RAID1 subdisks: ad4 ad6 status: READY ~ > sudo atacontrol status ar1 ar1: ATA RAID1 subdisks: ad5 ad7 status: READY However, I can also physically see the components: ~ > ls /dev/ad? /dev/ad4 /dev/ad5 /dev/ad6 /dev/ad7 ~ > sudo atacontrol list ATA channel 0: Master: acd0 ATA/ATAPI revision 5 Slave: no device present ATA channel 1: Master: acd1 ATA/ATAPI revision 5 Slave: no device present ATA channel 2: Master: ad4 ATA/ATAPI revision 7 Slave: ad5 ATA/ATAPI revision 5 ATA channel 3: Master: ad6 ATA/ATAPI revision 7 Slave: ad7 ATA/ATAPI revision 5 ATA channel 4: Master: no device present Slave: no device present ATA channel 5: Master: no device present Slave: no device present IIRC sysinstall shows the RAID components before the arrays, when it comes time to choose a disk or disks to install on. -Ash