From owner-freebsd-hackers Fri Jan 3 06:14:37 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id GAA23046 for hackers-outgoing; Fri, 3 Jan 1997 06:14:37 -0800 (PST) Received: from hda.hda.com (ip81-max1-fitch.ziplink.net [199.232.245.81]) by freefall.freebsd.org (8.8.4/8.8.4) with SMTP id GAA23036 for ; Fri, 3 Jan 1997 06:14:33 -0800 (PST) Received: (from dufault@localhost) by hda.hda.com (8.6.12/8.6.12) id JAA24455 for hackers@freebsd.org; Fri, 3 Jan 1997 09:10:44 -0500 From: Peter Dufault Message-Id: <199701031410.JAA24455@hda.hda.com> Subject: Re: more than 32 disks? In-Reply-To: <199701031302.HAA07824@bonkers.taronga.com> from Peter da Silva at "Jan 3, 97 07:02:49 am" To: hackers@freebsd.org Date: Fri, 3 Jan 1997 09:10:43 -0500 (EST) X-Mailer: ELM [version 2.4ME+ PL25 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Peter da Silva wrote in response to the 32 unit limit on SCSI disks:: > Use a wider minor number, a wider portion of the minor number for unit, > decrease the number of bits used for things other than unit, use multiple > major numbers, or use another encoding than major/minor numbers for device > files (via devfs). A related question: are there issues (regarding booting, etc) with removing all partition/slice/ file system code from the different device drivers and having a single "dk" device that gets wired to the other block devices? Essentially have the base device be a trusting client of a dk device that handles all that stuff. -- Peter Dufault (dufault@hda.com) Realtime Machine Control and Simulation HD Associates, Inc. Voice: 508 433 6936