Date: Thu, 28 Mar 96 14:21:49 EST From: gtc@aloft.att.com (gary.corcoran) To: jkh@time.cdrom.com, lehey.pad@sni.de Cc: hackers@freebsd.org Subject: Re: Can't read this stupid DAT tape - ARGH! Message-ID: <9603281921.AA16527@stargazer>
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Concerning DAT tapes and drives: >usually in the top right hand corner, there is a >sequence of three or four symbols that after some examination can be >considered to represent the letters "DDS", possibly followed by a >"2". The other way is the length of the tape: 60 and 90 m are DDS, >120 m is DDS-2. I was under the impression that a DDS-2 drive actually writes at a _higher density_ on *any* DAT than a DDS-1 drive. For example, if the ads I see are correct, DDS-2 drives can put 4GB on a single tape without compression. What they don't say, of course, is that 4GB is on a 120m length tape. But, doesn't that imply that you can get 3GB on a 90m tape? Whereas a DDS-1 drive can only put 2GB on a 90m tape (without compression). Please tell me this is true... ;-} - I'm just about to order a DAT backup drive, and was planning on getting a DDS-2 drive (HP C1533) so that I could fit more data on my 90m backup tapes (the 120m tapes are too expensive). Gary
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