Path: utzoo!attcan!uunet!mcvax!hp4nl!dutrun!dutesta!franky
From: franky@dutesta.UUCP (Frank W. ten Wolde)
Newsgroups: comp.sys.ibm.pc
Subject: Disk Data Transfer Question
Message-ID: <1228@dutesta.UUCP>
Date: 29 Nov 88 14:37:44 GMT
Reply-To: franky@dutesta.UUCP (Frank W. ten Wolde)
Organization: DELFT UNIVERSITY OF TECHNOLOGY
              Faculty of Electrical Engineering
              Computer architecture and Digital Technique
              Mekelweg 4   -   2628 CD  Delft
              The Netherlands
Lines: 37



I would like to know your (NetLanders) opinion about the following:

I have a AT&T 3600 (actually Olivetti M24) computer and a Seagate
harddisk (ST251-1) using a Western Digital Controller (WD1002S-WX1).
For optimum results I must set the interleave factor to 5, which
slows down the data transfer rate (disk<-->host) to appr. 100K per
second.
Other people I have spoken to, have informed me that they run with
an interleave factor of 3 (data transfer: 170K/s), on a "simple" ;-)
IBM XT at 4.77MHz.
I would think that my Olivetti (clock 8MHz) should be able to at 
least the same interleave(3)/transfer rate(170K/s), but for some 
reason it will not work properly.
My questions are:

    1. Is there someone out there who has the same problem?
    2. Is there someone with an AT&T 3600 with a data rate
       of 170K/s (and a corresponding interleave of 3)?
    3. Is there someone who can tell me where the problem
       originates and perhaps how to solve it?


		Thanks in advance,
				Frank ten Wolde
				franky@dutesta

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Frank ten Wolde  (PE1FCO)          | UUCP:  ..!mcvax!dutrun!dutesta!franky
Delft University of Technology     |   
Faculty of Electrical Engineering  |                          
Section Computer Architecture      |
Delft                              | 
The Netherlands                    | 
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