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Path: utzoo!utgpu!water!watmath!clyde!att-cb!att-ih!pacbell!ames!ucsd!sdcc6!sdcc8!cs178abu
From: cs178abu@sdcc8.ucsd.EDU (John Schultz)
Newsgroups: comp.sys.amiga.tech,comp.sys.amiga
Subject: Re: Getting a Mac Hyperdrive to work with a A2090
Message-ID: <831@sdcc8.ucsd.EDU>
Date: 2 Apr 88 19:51:49 GMT
References: <2955@gryphon.CTS.COM> <8633@g.ms.uky.edu> <3006@gryphon.CTS.COM> <759@elxsi.UUCP>
Reply-To: cs178abu@sdcc8.ucsd.edu.UUCP (John Schultz)
Organization: University of California, San Diego
Lines: 22

In article <759@elxsi.UUCP> matt@elxsi.UUCP (Matt Shaver) writes:
>As far as I can tell the drive physically has:
>                 4  heads
>                26  sectors per track
>               818  cylinders
>
  We just installed a 2090 with an ST251 in our 2000 as:
                  6 Surfaces 
                 17 BlocksPerTrack
                 Total cylinders 0-819, or 820

  It's partioned as four 10M partions, ~205 cylinders per part. The
last partion is short because of AmigaDos' use of the first two
cylinders.
  Anyway, the drive (knock on wood) works perfectly.  As far as I
know, the only differences between the 251, 251-1,251N are seek
speed and/or interface (251-1: 28ms, 251N SCSI). 

  So, change the number of heads to 6... That should fix it.


  John