Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shadooby!samsung!zaphod.mps.ohio-state.edu!rpi!crdgw1!ge-dab!peora!tarpit!bilver!bill
From: bill@bilver.UUCP (Bill Vermillion)
Newsgroups: comp.sys.tandy
Subject: Re: Replacing a Hard Disk on a 16B/6000
Keywords: ST506
Message-ID: <415@bilver.UUCP>
Date: 22 Dec 89 05:57:12 GMT
References: <2968@cbnewsj.ATT.COM>
Reply-To: bill@bilver.UUCP (Bill Vermillion)
Distribution: na
Organization: W. J. Vermillion, Winter Park, FL
Lines: 25

In article <2968@cbnewsj.ATT.COM> rjb@cbnewsj.ATT.COM (richard.j.bavier) writes:

->I have a problem similar to one I saw reported earlier.  I have a 16B that
->has been upgraded to a 6000(PAL changes).  I wanted to replace the hard
->disk I am using.  Currently I have a ST225 that works fine.  I want to
->replace it with a CDC 86 meg drive.  I have been told the drive uses
->the ST506 interface and is rated at 28ms.  When I try to format the
->drive I get the error message "drive not ready".  When I put the drive
->in an MS-DOS machine with a Western Digital controller it works fine so
->I know I have the drive select jumper set correctly.

You have the drives jumpered correctly FOR AN MS-DOS MACHINE.  The Tandy's 
are not MSDOS.   Take a close look and you will find that the drives in most
MSDOS machines are selected as DRIVE ONE (NOT ZERO), and the cable does the
selection.   Jumper the drive for drive select zero and your problems will go
away.   Not using a CDC, but was using a Miniscribe (it ate itself one day to
the acompniment of the sounds of heads grinding on the platter) and is now and
internal Microlpolis.  Just plug and go AFTER setting the jumpers correctly.
If you are using an external box the additional jumpers that Tandy used on the
orignal need to be matched.


-- 
Bill Vermillion - UUCP: {uiucuxc,hoptoad,petsd}!peora!tarpit!bilver!bill
                      : bill@bilver.UUCP