From owner-freebsd-scsi Tue Mar 2 21:31:33 1999 Delivered-To: freebsd-scsi@freebsd.org Received: from panzer.plutotech.com (panzer.plutotech.com [206.168.67.125]) by hub.freebsd.org (Postfix) with ESMTP id 1556614E93 for ; Tue, 2 Mar 1999 21:30:52 -0800 (PST) (envelope-from ken@panzer.plutotech.com) Received: (from ken@localhost) by panzer.plutotech.com (8.9.2/8.8.5) id WAA82754; Tue, 2 Mar 1999 22:30:32 -0700 (MST) From: "Kenneth D. Merry" Message-Id: <199903030530.WAA82754@panzer.plutotech.com> Subject: Re: Problems with teac cdroms + symbios based adapters? In-Reply-To: <19990302222525.A4752@ikhala.tcimet.net> from Natty Rebel at "Mar 2, 1999 10:25:25 pm" To: dervish@ikhala.tcimet.net (Natty Rebel) Date: Tue, 2 Mar 1999 22:30:32 -0700 (MST) Cc: scsi@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Natty Rebel wrote... > Quoting Kenneth D. Merry (ken@plutotech.com): > > Natty Rebel wrote... > > > Hey all (I had posted this message to hackers, but scsi is more appropriate ...) > > > > > > I've recently purchased a Teac 516s 16x cdrom along with a Kouwell 801V10B > > > Fast SCSI adapter (Symbios 53C810a chipset). My problem is that the cdrom > > > drive fails to recognise any cd's placed in it. Here are some results > > > using camcontrol: > > > > > > # camcontrol tur -n cd -v > > > (pass0:ncr0:0:3:0): TEST UNIT READY. CDB: 0 0 0 0 0 0 > > > (pass0:ncr0:0:3:0): NOT READY asc:3a,0 > > > (pass0:ncr0:0:3:0): Medium not present > > > Unit is not ready > > > > > > the above is the main message that i see (i.e. 'medium not present' and > > > 'unit is not ready'). > > > > Hmm, interesting. > > > > > what's funny is that i can send the eject command > > > and the tray will eject. > > > > That's not surprising at all. In fact, I would expect that with tray-type > > drives. > I'm curious as to why this is? Why not? It's a way to pop the tray open from software. > > > > > i've called teac tech support and the rep said > > > there were some known issues with cam and symbios based chipsets. is this correct? > > > > How would someone from Teac know about CAM at all? Sure, there are some > > bugs in the NCR/Symbios driver. They mainly due to the fact that no one is > > actively maintaining it. > Since that's the case I'll see what I can do. Since the drive does respond > to the eject command, maybe this combo can be made to work. > > [snippage ...] > > Well, I'm not sure what we can really do about it. If the drive says > > there's no media present, there's probably not a whole lot you can do to > > convince it otherwise. > > > > Does that controller/drive combination work on any other OS? > Not sure, but I'll check with the other BSD's and Linux groups. > > > I kinda suspect that it won't. At least if you can tell them "it doesn't work > > under Windows", they might take the drive back and give you one that works. > Well my wife has a win95 box. Maybe I'll do some tinkering late one nite, > while she's asleep of course ... #;^) Yep, that's a good idea. Another thing to try is putting the CDROM drive on another SCSI card. I suspect it may be broken, but you'll want to try it with Windows to be sure it's not the NCR driver or something. Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message