Date: Sat, 6 Nov 2004 09:18:28 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Palle Girgensohn <girgen@pingpong.net> Cc: freebsd-scsi@freebsd.org Subject: Re: how "reformat" DLT IV tape from 20/40 to 40/80? Message-ID: <Pine.BSF.4.53.0411060904090.29952@e0-0.zab2.int.zabbadoz.net> In-Reply-To: <4501DBD4728A1FD2B7595244@rambutan.pingpong.net> References: <4501DBD4728A1FD2B7595244@rambutan.pingpong.net>
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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
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