From owner-freebsd-scsi Sat Jul 27 14:20:10 1996 Return-Path: owner-freebsd-scsi Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id OAA04197 for freebsd-scsi-outgoing; Sat, 27 Jul 1996 14:20:10 -0700 (PDT) Received: from hda.com (ip59-max1-fitch.zipnet.net [199.232.245.59]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id OAA04181; Sat, 27 Jul 1996 14:20:02 -0700 (PDT) Received: (from dufault@localhost) by hda.com (8.6.11/8.6.9) id RAA00514; Sat, 27 Jul 1996 17:13:34 -0400 From: Peter Dufault Message-Id: <199607272113.RAA00514@hda.com> Subject: Re: Setting disk sector size? To: grog@freefall.freebsd.org (Greg Lehey) Date: Sat, 27 Jul 1996 17:13:32 -0400 (EDT) Cc: joerg_wunsch@uriah.heep.sax.de, scsi@freefall.freebsd.org In-Reply-To: <199607271919.MAA27047@freefall.freebsd.org> from "Greg Lehey" at Jul 27, 96 12:19:45 pm Reply-to: hdalog@zipnet.net X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-freebsd-scsi@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > Well, according to scsiformat, the sector size *is* changeable. I've > gone through all four -P values, and discovered that the default value > is, in fact, 512. Obviously one alternative would be to reset the disk > to its default value. Does anybody have any ideas on that? > > -P 1 (changeable values) lists all the fields, but all are set to 0. > Does this mean anything? It means they aren't changeable - changeable fields will be all 1 bits, non-changeable all zero bits. Maybe there are some other steps you have to take before the block size become changeable, such as a jumper or a setting in a different mode page. I'm afraid nothing jumps out at me looking through the direct access mode pages, though. -- Peter Dufault Real-Time Machine Control and Simulation HD Associates, Inc. Voice: 508 433 6936 dufault@hda.com Fax: 508 433 5267