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Date:      Fri, 29 Mar 1996 12:28:07 +1030 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        gtc@aloft.att.com (gary.corcoran)
Cc:        jkh@time.cdrom.com, lehey.pad@sni.de, hackers@FreeBSD.org
Subject:   Re: Can't read this stupid DAT tape - ARGH!
Message-ID:  <199603290158.MAA19305@genesis.atrad.adelaide.edu.au>
In-Reply-To: <9603281921.AA16527@stargazer> from "gary.corcoran" at Mar 28, 96 02:21:49 pm

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gary.corcoran stands accused of saying:
> 
> 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...   ;-}

Sorry, no.  A DDS-2 drive will write in the DDS-1 format on the shorter 
tapes.

> - 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).

At <$15 each, just use more 2G tapes 8)

> Gary

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
]] Collector of old Unix hardware.      "Where are your PEZ?" The Tick  [[



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