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Article #20

Re: Exabyte data capacity

#20
From: mfineman Mark S. Fineman
Date: Wed, 04 Nov 1992 22:24
28 lines
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In article <27204@dog.ee.lbl.gov> rab@bevsun.bev.lbl.gov (Robert Belshe) writes:
>
>Has anyone noticed a loss of data capacity when writing
>model 8500 exabytes at the optional low density?
>
>We have noticed that when we write a full tape from an application
>which writes 8kbyte records at a data rate of around 50kbytes/second
>that the tape fills up at approx 1 gbyte, instead of the expected 
>2 gbytes.
>
>A test program which writes data at 250kbytes/sec is able to
>get a full 2 gbytes on a tape.
>
>My guess is that this is caused by the tape being unable to stay
>in the streaming mode.
 Yes, the thing has some state mode where it writes an ignored
 on input track rather than stop streaming.

 I don't have the specifications around anymore, so I don't
 have the details.

 I'm surprised it doesn't work the same way at the higher density.

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Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!ames!olivea!inews.Intel.COM!cad018!mfineman
From: mfineman@cad018..intel.com ( Mark S. Fineman )
Newsgroups: comp.periphs
Subject: Re: Exabyte data capacity
Message-ID: <Bx7q8K.5nF@inews.Intel.COM>
Date: 4 Nov 92 22:24:19 GMT
References: <27204@dog.ee.lbl.gov>
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