From owner-freebsd-current@FreeBSD.ORG Thu Apr 8 08:52:34 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 A6C2B16A4CE; Thu, 8 Apr 2004 08:52:34 -0700 (PDT) Received: from www.ambrisko.com (adsl-64-174-51-42.dsl.snfc21.pacbell.net [64.174.51.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id 40A1B43D49; Thu, 8 Apr 2004 08:52:34 -0700 (PDT) (envelope-from ambrisko@ambrisko.com) Received: from ambrisko.com (localhost [127.0.0.1]) by www.ambrisko.com (8.12.9p2/8.12.9) with ESMTP id i38FqXCf028467; Thu, 8 Apr 2004 08:52:33 -0700 (PDT) (envelope-from ambrisko@ambrisko.com) Received: (from ambrisko@localhost) by ambrisko.com (8.12.9p2/8.12.9/Submit) id i38FqXAn028466; Thu, 8 Apr 2004 08:52:33 -0700 (PDT) (envelope-from ambrisko) From: Doug Ambrisko Message-Id: <200404081552.i38FqXAn028466@ambrisko.com> In-Reply-To: <20040408153936.GA16585@panzer.kdm.org> To: "Kenneth D. Merry" Date: Thu, 8 Apr 2004 08:52:33 -0700 (PDT) X-Mailer: ELM [version 2.4ME+ PL94b (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII cc: freebsd-current@freebsd.org Subject: Re: ICH5R SATA RAID? 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: Thu, 08 Apr 2004 15:52:34 -0000 Kenneth D. Merry writes: | On Wed, Apr 07, 2004 at 07:15:09 -0700, Doug Ambrisko wrote: | > Kenneth D. Merry writes: | > | On Tue, Apr 06, 2004 at 20:29:10 -0700, Doug Ambrisko wrote: | > | > I have a SuperMicro system that does the Intel "ICH5-R" RAID. | > | > I should get inspired via the Linux code and see if I can add | > | > that. So far I've haved setup the RAID but have turned on the ICH | > | > flag. | > | | > | Adaptec HostRAID is software RAID. By software RAID, I mean that you only | > | get BIOS support from the card for booting, and after that all of the RAID | > | functionality is handled via the host OS. | > | | > | Some of their SCSI controllers include HostRAID support. e.g.: | > | | > | http://www.adaptec.com/worldwide/product/proddetail.html?sess=no&language=English+US&prodkey=ASC-39320A-R&cat=%2fTechnology%2fUltra320%2fNew+Ultra320+SCSI! | > | > The ICH stuff is not SCSI. There was no mention of Adaptec in the | > manual for this motherboard. There were other SuperMicro boards that | > had SCSI controllers on them but this one and the one I have do not. | > They just have SATA ports that can do RAID. | | True, it is SATA, not SCSI. But the concept, and some of the software, is | the same. It's pretty common in OEM deals for the actual vendor of the | software/hardware to remain unknown. From what it looks like, the RAID | functionality is all in software, as opposed to running on a chip embedded | in the ICH5. I have working code to read the Intel ICH RAID meta data. I can boot a FreeBSD root partition off a stripe. I looked at your page and it was difficult to see the actual meta data definition. I might have missed it since I was looking at the patch as a patch it didn't look the same at all. Do you have a non-patch version of the meta data definition? Now I need to code up the "write out" of the configuration. Currently I just use the configuration created by the BIOS. I should have this done today then I need to test failure modes. Thanks, Doug A.