From owner-freebsd-scsi Sat Jun 7 01:52:55 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id BAA06972 for freebsd-scsi-outgoing; Sat, 7 Jun 1997 01:52:55 -0700 (PDT) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id BAA06967 for ; Sat, 7 Jun 1997 01:52:51 -0700 (PDT) Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id KAA22064; Sat, 7 Jun 1997 10:52:50 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.8.5/8.8.5) id KAA01738; Sat, 7 Jun 1997 10:36:47 +0200 (MET DST) Message-ID: <19970607103646.LS18353@uriah.heep.sax.de> Date: Sat, 7 Jun 1997 10:36:46 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: scsi@freebsd.org Cc: tom@tomqnx.com (Tom Torrance at home) Subject: Re: CD-R & SCSI Problems References: <33984DF9.2781E494@whistle.com> X-Mailer: Mutt 0.60_p2-3,5,8-9 Mime-Version: 1.0 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 Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: ; from Tom Torrance at home on Jun 7, 1997 00:36:37 -0400 Sender: owner-freebsd-scsi@freebsd.org X-Loop: FreeBSD.org Precedence: bulk (Moved to the scsi list, that's what it is for.) As Tom Torrance at home wrote: > You are absolutely correct. ANother unfounded assumption bites the > dust. I have absolutely no idea what is causing this, it seems to > happen every time the tape is either opened or closed - and 'seems' > to cause no harm. Turn on SCSIDEBUG, and see which command is causing it. It might be a LOAD UNLOAD MEDIUM, or PREVENT ALLOW MEDIUM REMOVAL. > THe tape drive is an HP Colorado T4000 running off my ahc AHA-2740A. It wouldn't surprise me if the SCSI implementation of these drives weren't the brightest. We've recently seen similar (worse, i think) examples for a cheap Conner tape. The behaviour of this drive made me shout that it's apparently a drive that has a 50-pin connector looking like SCSI, but it isn't really SCSI. (It violated the specs all over the place, they didn't even bother to implement some mandatory commands.) -- 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. ;-)