From owner-freebsd-scsi Sun Dec 14 09:21:44 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id JAA20641 for freebsd-scsi-outgoing; Sun, 14 Dec 1997 09:21:44 -0800 (PST) (envelope-from owner-freebsd-scsi) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id JAA20636 for ; Sun, 14 Dec 1997 09:21:39 -0800 (PST) (envelope-from j@uriah.heep.sax.de) Received: (from uucp@localhost) by sax.sax.de (8.8.8/8.8.8) with UUCP id SAA07242; Sun, 14 Dec 1997 18:21:35 +0100 (CET) (envelope-from j@uriah.heep.sax.de) Received: (from j@localhost) by uriah.heep.sax.de (8.8.8/8.8.5) id SAA29268; Sun, 14 Dec 1997 18:03:44 +0100 (MET) Message-ID: <19971214180344.18122@uriah.heep.sax.de> Date: Sun, 14 Dec 1997 18:03:44 +0100 From: J Wunsch To: freebsd-scsi@FreeBSD.ORG Cc: Jim Riffle Subject: Re: possiable quirk with CTT8000-S Tape Drive Reply-To: Joerg Wunsch References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.88 In-Reply-To: ; from Jim Riffle on Thu, Dec 11, 1997 at 11:50:56PM -0500 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 Sender: owner-freebsd-scsi@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk As Jim Riffle wrote: > > (aic0:0:0): "CONNER CTT8000-S 1.17" type 1 removable SCSI 2 > > st0(aic0:0:0): Sequential-Access density code 0x45, drive empty That tape drive is a Travan tape? From previous reports, i've got the impression that the SCSI implementation of these drives is of very poor quality. Your drive seems to support this suspicion. > st0(aic0:0:0): command: 10,0,0,0,1,0-[0 bytes] That's a WRITE FILEMARKS command, requesting the drive to write one filemark. > st0(aic0:0:0): ILLEGAL REQUEST asc:80,81 Vendor Specific ASC ...which the drive choses to not implement, apparently. Even more, they're using a private ASC/ASCQ, why the heck? WRITE FILEMARKS is flagged `mandatory' in the SCSI-2 specs. If your drive doesn't implement it, it can't be called `SCSI'. Return it to the vendor, or request a functional firmware agreeing with the standard. -- 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. ;-)