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Article #42

Re: DAT as data drive

#42
From: Rogier Wolff
Date: Mon, 27 Jul 1992 10:57
19 lines
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dale@convex.com (Dale Lancaster) writes:

>In <92201.120931ADB103@psuvm.psu.edu> <ADB103@psuvm.psu.edu> writes:
>It is likely that you can work up a computer connection to these
>drives (ID1, ID2, ID3), but my survey of the ID type drives is
>that the Bit Error Rate is too high to store digital data (typically
>in the 1x10-10 range.  A coulpe of vendors have adapted the ID
>drive to a DD (Digital Data)  drive, but it took some work to get
>the BER down to 1x10-13 which also added to the cost of the drive.

A software (dual) parity check or reed-solomon ecc, would in no time
improve the BER to better than 1x10-13. One would have to do good blocking
and so forth to prevent dataloss due to a burst of errors.

						Roger
-- 
If the opposite of "pro" is "con", what is the opposite of "progress"? 
(stolen from  kadokev@iitvax.iit.edu, who got it from brydon@asl.sinet.slb.com)
EMail:  wolff@duteca.et.tudelft.nl   ** Tel  +31-15-783644 or +31-15-142371
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Message-ID: <1992Jul27.105750.1830@donau.et.tudelft.nl>
Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!sun4nl!dutrun!donau!duteca8.et.tudelft.nl!wolff
References: <92201.120931ADB103@psuvm.psu.edu> <dale.711685272@convex.convex.com>

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From: wolff@duteca8.et.tudelft.nl (Rogier Wolff)
Subject: Re: DAT as data drive
Message-ID: <1992Jul27.105750.1830@donau.et.tudelft.nl>
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Organization: Delft University of Technology, Dept. of Electrical Engineering
References: <92201.120931ADB103@psuvm.psu.edu> <dale.711685272@convex.convex.com>
Date: Mon, 27 Jul 1992 10:57:50 GMT
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