From owner-freebsd-current Wed Sep 16 16:37:42 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA10149 for freebsd-current-outgoing; Wed, 16 Sep 1998 16:37:42 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from panzer.plutotech.com (panzer.plutotech.com [206.168.67.125]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA10027 for ; Wed, 16 Sep 1998 16:37:01 -0700 (PDT) (envelope-from ken@panzer.plutotech.com) Received: (from ken@localhost) by panzer.plutotech.com (8.9.1/8.8.5) id RAA28520; Wed, 16 Sep 1998 17:36:35 -0600 (MDT) From: "Kenneth D. Merry" Message-Id: <199809162336.RAA28520@panzer.plutotech.com> Subject: Re: DAT/CAM Questions In-Reply-To: <199809161717.aa04590@mail.eecis.udel.edu> from Jerry Alexandratos at "Sep 16, 98 05:17:16 pm" To: alexandr@mail.eecis.udel.edu Date: Wed, 16 Sep 1998 17:36:34 -0600 (MDT) Cc: current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL28s (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Jerry Alexandratos wrote... > I've got a HP SureStore DAT24x6e autoloader drive. With CAM, should I > use ch0 or sa0. Also, will it automatically load and unload the tapes, > or will I have to do this manually? It really depends on how the device works. CAM will probably work pretty much like the old SCSI layer with this device. Generally, if you've got a tape changer, it will show up as two devices. One will be the changer device, and the other will be the tape drive. I've got an Exabyte 10i here that shows up like that. The easiest thing to do is just put both ch0 and sa0 in your kernel and see what shows up. :) As for whether the tapes will automatically unload, that really depends on how the drive operates. CAM doesn't (and the old SCSI layer didn't either) automatically unload tapes. You've got to do a mt offline or mt rewoffl to make that happen. (unless the drive automatically does it) Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message