From owner-freebsd-questions Thu May 11 10:08:40 1995 Return-Path: questions-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id KAA06065 for questions-outgoing; Thu, 11 May 1995 10:08:40 -0700 Received: from squid.umd.edu (squid.umd.edu [129.2.40.6]) by freefall.cdrom.com (8.6.10/8.6.6) with SMTP id KAA06048 for ; Thu, 11 May 1995 10:08:17 -0700 Received: by squid.umd.edu (5.65/Ultrix3.0-C) id AA27882; Thu, 11 May 1995 13:13:46 -0400 From: fcawth@squid.umd.edu (Fred Cawthorne) Message-Id: <9505111713.AA27882@squid.umd.edu> Subject: Re: Zip drives To: chuckr@Glue.umd.edu (Chuck Robey) Date: Thu, 11 May 95 13:13:46 EDT Cc: FreeBSD-Questions@FreeBSD.org In-Reply-To: ; from "Chuck Robey" at May 9, 95 3:59 pm X-Mailer: ELM [version 2.3 PL11] Sender: questions-owner@FreeBSD.org Precedence: bulk > > Has anyone tried out the Iomega Zip drives? I have a Adaptec 2842, will > that drive one around the block? Are there any gotcha's about mounting > or umounting, other than what I'd use for, say, a floppy? > I have one on my FreeBSD 950322-SNAP machine here... Here's how it is probed: (ncr0:6:0): "IOMEGA ZIP 100 L.27" is a type 0 removable SCSI 2 sd1(ncr0:6:0): Direct-Access sd1(ncr0:6:0): ILLEGAL REQUEST asc:24,0Invalid field in CDB sd1 could not mode sense (4). Using ficticious geometry 96MB (196608 512 byte sectors) I erased the disk that came with it on a macintosh (Otherwise you couldn't write to it, even with dos or FreeBSD). It seemed to work fine with the disklabel automatically generated by FreeBSD. I had to address it as /dev/sd1d or something. I could eject the disk, mount and unmount, etc... with no problems. Now that I wrote a disklabel onto the disk, it only lets me mount the thing when I have just booted, but when I unmount it and try to do anything with it again, it says "medium may have changed..." and then gives me "device not configured" messages when I try to access any of the /dev/sd1* devices... (i.e. I can't mount it again until I reboot) Otherwise, it is nice. Has anybody else seen this kind of problem with a removeable disk???? I get ~700 K/sec with my NCR 810 scsi controller with iozone creating and reading a 32 meg file... Any ideas??? Is there a bug in the code that re-reads the disklabel when the medium is changed??? Fred.