From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lars Marowsky-Bree Subject: Re: Driver for BIOS-based software RAIDs Date: Mon, 13 Oct 2003 23:17:22 +0200 Sender: linux-raid-owner@vger.kernel.org Message-ID: <20031013211722.GG23916@marowsky-bree.de> References: <200310131921.45824.thomas@horsten.com> <20031013190323.GD23916@marowsky-bree.de> <200310132025.30939.thomas@horsten.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <200310132025.30939.thomas@horsten.com> To: Thomas Horsten , linux-raid@vger.kernel.org List-Id: linux-raid.ids On 2003-10-13T20:25:30, Thomas Horsten said: > The problem is that the block device thus assembled won't have suppor= t for=20 > multiple partitions, for two reasons: the MD driver doesn't align the= minor=20 > to any offset, and it doesn't allocate multiple minors for a RAID so = we can=20 > call register_disk to parse the partition table and create the logica= l=20 > partition devices. Both of these are defaults, and it might be possib= le to=20 > tweak. You probably could change that easily enough. > Well due to the nature of BIOS RAID's, the user is likely to expect > that it will be detected and handled automatically without the need > for a separate setup (since the machine creates the logical device fo= r > them, and this works in other OS's that use the BIOS to access the > drive). "BIOS RAIDs" is a rather sweet euphemism for "crippled pretense of hardware RAID, which is in fact emulated by software". I've got no problem with telling the users that what they have _is_ software RAID and needs to be treated as such. Windows doesn't use the BIOS to access the device at all; the corresponding hardware drivers emulate that. Sincerely, Lars Marowsky-Br=E9e --=20 High Availability & Clustering ever tried. ever failed. no matter. SuSE Labs try again. fail again. fail better. Research & Development, SUSE LINUX AG -- Samuel Beckett - To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html