From owner-freebsd-questions Sun Jul 14 01:22:27 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id BAA03300 for questions-outgoing; Sun, 14 Jul 1996 01:22:27 -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 BAA03268; Sun, 14 Jul 1996 01:22:16 -0700 (PDT) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id KAA23594; Sun, 14 Jul 1996 10:22:07 +0200 Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id KAA20631; Sun, 14 Jul 1996 10:22:06 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.7.5/8.6.9) id KAA15641; Sun, 14 Jul 1996 10:04:15 +0200 (MET DST) From: J Wunsch Message-Id: <199607140804.KAA15641@uriah.heep.sax.de> Subject: Re: Jaz drive questions To: freebsd-scsi@freebsd.org Date: Sun, 14 Jul 1996 10:04:15 +0200 (MET DST) Cc: Stephen.Couchman@imagenet.on.ca, freebsd-questions@freebsd.org, n_melhor@Telebit.COM Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199607132245.IAA03964@godzilla.zeta.org.au> from Bruce Evans at "Jul 14, 96 08:45:47 am" 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-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Bruce Evans wrote: > > sd1(ahc0:2:0): ILLEGAL REQUEST asc:24,0 Invalid field in > > CDB sd1 could not mode sense (4). Using ficticious > > geometry 1021MB (2091050 512 byte sectors) > > This means that FreeBSD _did_ recognize the drive. Iomega apparently > didn't bother to implement the SCSI mode sense command, so the driver > can't determine anything about the number of heads or sectors/track > on the disk (if any). That's not true. Of course, they did implement a MODE SENSE command (it's optional per the SCSI specs, but certainly implemented in any disk drive). It's possible that they didn't implement mode page 4 ("Rigid disk drive geometry page"), or that FreeBSD has some other incorrect setting when performing the MODE SENSE. You will only be sure after turning on debugging, and comparing step by step with IOmega's SCSI specs. The claimed number of sectors looks highly suspicious: it's IMHO 10 x too large. -- 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. ;-)