From owner-freebsd-scsi@FreeBSD.ORG Sat Nov 6 09:20:27 2004 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A07ED16A4D6 for ; Sat, 6 Nov 2004 09:20:27 +0000 (GMT) Received: from transport.cksoft.de (transport.cksoft.de [62.111.66.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id 41C6443D2D for ; Sat, 6 Nov 2004 09:20:10 +0000 (GMT) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from transport.cksoft.de (localhost [127.0.0.1]) by transport.cksoft.de (Postfix) with ESMTP id BC7B31FFACA; Sat, 6 Nov 2004 10:20:07 +0100 (CET) Received: by transport.cksoft.de (Postfix, from userid 66) id C0BE61FF9AF; Sat, 6 Nov 2004 10:20:05 +0100 (CET) Received: by mail.int.zabbadoz.net (Postfix, from userid 1060) id AAED21539F; Sat, 6 Nov 2004 09:18:27 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.int.zabbadoz.net (Postfix) with ESMTP id A02321538C; Sat, 6 Nov 2004 09:18:28 +0000 (UTC) Date: Sat, 6 Nov 2004 09:18:28 +0000 (UTC) From: "Bjoern A. Zeeb" X-X-Sender: bz@e0-0.zab2.int.zabbadoz.net To: Palle Girgensohn In-Reply-To: <4501DBD4728A1FD2B7595244@rambutan.pingpong.net> Message-ID: References: <4501DBD4728A1FD2B7595244@rambutan.pingpong.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS cksoft-s20020300-20031204bz on transport.cksoft.de cc: freebsd-scsi@freebsd.org Subject: Re: how "reformat" DLT IV tape from 20/40 to 40/80? X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Nov 2004 09:20:27 -0000 On Sat, 6 Nov 2004, Palle Girgensohn wrote: > Hi! > > Just got a new taper, an HP DLT VS80. We previously had an Adic, 20/40. The > use the same type of tapes, DLT IV. Now, I want to keep using some of the > old tapes, but the HP won't write to them, and I believe that is because > they are just 20/40 GB, not 40/80 GB. I found some info saying that the > first time a tape is used, the taper writes info about the density (or sets > the density somehow). VS80 is NO "full-featured" DLT IV tape. You can only write to tapes previously written by a VS80 or that are blank (new or _correctly_ degaussed). For a more detailed description (please see this link: http://quantum.broaddaylight.com/quantum_support/FAQ_33_4717.shtm > I use FreeBSD, so I expect mt(1) should somehow be able to perform the > trick. no; it's not a matter of trick. It simply cannot work. VS80 != DLT IV and that's it. HP wants to make extra money from you ;) > Any ideas how to fix this? buy a DLT IV tape drive, degauss your tapes or buy new tapes. sorry to say there aren't many other possibilities. -- Greetings Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT