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Article View: comp.sys.atari.st
Article #4079

Re: Connecting 2 hard drives

#4079
From: Root Of All Evil
Date: Sun, 17 Sep 1989 00:46
50 lines
3236 bytes
In article <2972@tahoe.unr.edu> mikew@wheeler.UUCP (Mike Whitbeck) writes:
>I have 2 ST's one has a megafile30 the other has an ICD 30M
>drive (seagate with SCSI ). I would like to do a one time
>transfer of LOTS of programs/data between the two. 
>
>The manual for the megafile30 says I have to open the case to
>change its drive #'s and that would void the warranty. The ICD
>did not come with a manual. The ICD has both a DMA out and SCSI
>out ports (daisy chain). 
>
>	I'm thinking that I should plug the ICD
>in to the ST's DMA as drives C-D-E ; open the megafile and
>change the dip switches (but to what I don't know)
>to make it F-G-H and plug it into the DMA port on the ICD.
>
>So waddya think? Anyone know? 

I've done it successfully on various Atari drives.  (I can't remember
about the Megafile 30, but I think that one also.) If you want to try,
open the case and change one DIP switch.  On some drives the switch to
move is the right of three; on others it is the middle one.  Look on
the circuit board (NOT the switch itself) for some little identifying
numbers.  If the three switches are labelled 2 1 X, then you want to
change the middle one.  If they're labelled 4 2 1 then it's the right
one.  Maybe there are other possibilities, in which case you just have
to guess.  This will change it from device 0 to device 1.

Now daisy chain your two drives to your computer (either order is
okay).  Turn one on and let it spin up.  Then turn the second on and
let it spin up.  Finally, boot up your computer.  If all goes well,
all partitions on both drives will be available.  The way it works is
that the partitions from device 0 are assigned in sequence to C, D,
..., then the ones from device 1, etc.  Thus, if you have 3 partitions
on each drive, they will come up as C, D, E, F, G, H.  Make sure you
don't have a ramdisk installed under one of these drive letters.  If
you don't have TOS 1.4, then be careful of the 40-folder bug when
copying masses of files from one disk to the other.  You might want to
increase the number of folders available using FOLDRxxx.PRG or to
reboot periodically.

Usual disclaimer: I hope you find this information helpful, but I take
no responsibility for its accuracy nor for any damage you may do to
your equipment, your data, or for voiding your warranty, so be careful
and back up your disks before starting.
==================================================
| Michael Fischer                                |
|    Arpanet:    <fischer-michael@cs.yale.edu>   |
|    Bitnet:     <fischer-michael@yalecs.bitnet> |
|    UUCP:       <fischer-michael@yale.UUCP>     |
==================================================
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Message-ID: <72835@yale-celray.yale.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!yale!root
References: <3114@cveg.uucp> <2971@tahoe.unr.edu> <2972@tahoe.unr.edu>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!yale!root
From: root@yale.UUCP (Root Of All Evil)
Newsgroups: comp.sys.atari.st
Subject: Re: Connecting 2 hard drives
Keywords: megafile30 ICD 30
Message-ID: <72835@yale-celray.yale.UUCP>
Date: 17 Sep 89 00:46:41 GMT
References: <3114@cveg.uucp> <2971@tahoe.unr.edu> <2972@tahoe.unr.edu>
Reply-To: fischer-michael@CS.YALE.EDU (Michael Fischer)
Organization: Yale University Computer Science Dept, New Haven CT  06520-2158
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