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From: tsp@hadron.UUCP (T. Scott Pyne)
Newsgroups: net.micro,net.micro.trs-80
Subject: formatting ST506 winchesters (naive question)
Message-ID: <321@hadron.UUCP>
Date: Fri, 21-Mar-86 15:08:07 EST
Article-I.D.: hadron.321
Posted: Fri Mar 21 15:08:07 1986
Date-Received: Tue, 25-Mar-86 04:13:08 EST
Reply-To: tsp@hadron.UUCP (T. Scott Pyne)
Organization: Hadron, Inc., Fairfax, VA
Lines: 25
Keywords: ST506 formatting Tandy-2000
Xref: watmath net.micro:14106 net.micro.trs-80:614
Summary: how to determine size of disk?

References:


[]
   A possibly naive question  for the net:   when formatting an ST506
Winchester,  in this case a Tandon TM502 in a Tandy 2000,  does (can)
the formatting program know,  or have to know, beforehand how big the
disk in question is?   I am interested  in swapping the  10Mb disk in
my 2000 for a larger  (35Mb?  70Mb?) disk,  still mounted internally.
The HFORMAT program which comes with MS-DOS on the 2000 seems to have
an idea how many cylinders there are on the disk (of course), so what
happens when I power the system up with, e.g., a 35Mb disk?  Does the
formatter find out that the disk is 35Mb and work OK?   Failing that,
does one have to hardwarily tell the controller how big each attached
disk is? Tandy, of course, supports only an external add-on disk, but
the disk driver in Venix doesn't understand about multiple disks yet.

   Anyway, all enlightenment is gratefully accepted.  If I get a slew
of responses (or requests for forwarding of information), I'll post a
summary.  Thanks in advance.
						Scott

==========
T. Scott Pyne
Hadron, Inc.
...!seismo!hadron!tsp
tsp@hadron.UUCP