From owner-freebsd-scsi Sat Jul 27 23:51:21 1996 Return-Path: owner-freebsd-scsi Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id XAA02383 for freebsd-scsi-outgoing; Sat, 27 Jul 1996 23:51:21 -0700 (PDT) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id XAA02371 for ; Sat, 27 Jul 1996 23:51:17 -0700 (PDT) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id IAA11451; Sun, 28 Jul 1996 08:51:13 +0200 Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id IAA11961; Sun, 28 Jul 1996 08:51:12 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.7.5/8.6.9) id IAA06933; Sun, 28 Jul 1996 08:37:29 +0200 (MET DST) From: J Wunsch Message-Id: <199607280637.IAA06933@uriah.heep.sax.de> Subject: Re: Setting disk sector size? To: scsi@freebsd.org Date: Sun, 28 Jul 1996 08:37:29 +0200 (MET DST) Cc: grog@freefall.freebsd.org (Greg Lehey) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199607272254.PAA09991@freefall.freebsd.org> from Greg Lehey at "Jul 27, 96 03:54:37 pm" X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E X-Mailer: ELM [version 2.4ME+ PL17 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Greg Lehey wrote: > Yes, I have no doubt that I'll need to reformat. That's not the > problem, I just want to know how to set the block size first. I've just checked with my old scratch disk (a flakey Maxtor MXT-1240S), and this one lets me specify a sector size on the Rigid Disk Geometry page (using scsi -e). The size will be reverted to the current size if i'm performing some IO on the drive. I'm now reformatting... So if your IBM drive doesn't do it this way, they will most likely abuse a vendor-specific mode page for this. You have to get this information from the vendor then. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)