Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!uunet!portal!cup.portal.com!thad
From: thad@cup.portal.com (Thad P Floryan)
Newsgroups: comp.sys.amiga
Subject: Re: Seagate.
Message-ID: <20316@cup.portal.com>
Date: 11 Jul 89 05:55:33 GMT
References: <8907020047.AA15716@lilac.berkeley.edu> <3671@ddsw1.MCS.COM>  <10403@polya.Stanford.EDU> <3687@ddsw1.MCS.COM> <20260@cup.portal.com> <7682@cs.Buffalo.EDU>
Organization: The Portal System (TM)
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ARRGH!  In my reply to Joe, I stated the ST138N's manual claims 155 sectors
per cylinder.  That number should be "103" sectors per cylinder; the 155 value
is for the ST157N.

Sigh.  The difficulties of balancing a manual on one's lap while typing on a
keyboard with two hands in a room with poor lighting!  :-)

My point (re: the "huh?") was that 103 doesn't jibe with the physical layout.
The REASON is that they're working with "averages" and assuming one bad sector
out of every 104 in terms of where to place the alternate sector to avoid
excess head-and-arm motion.

Thad Floryan [ thad@cup.portal.com (OR)  ..!sun!portal!cup.portal.com!thad ]