Imaging SCSI hard disks

From: Ethan Dicks <>
Date: Wed Sep 1 22:14:49 2004

On Wed, Sep 29, 2004 at 10:48:11PM -0400, Jerome H. Fine wrote:
> HELP!! Something seems to be missing. Is SIMH being used
> with SCSI hard disk drives are are the SCSI hard disk drives
> first being copied to a hard disk file AFTER which SIMH does:
> ATTACH RQ0: hard_disk_file.DSK
> I don't know of any command that allows SIMH to ATTACH
> a raw SCSI hard drive like E11 allows. What am I missing
> in this discussion? PLEASE!!!

I have no idea how to do this with any version of Windows, but UNIX/Linux/etc.
have always given you access to the raw disk. In my case, the relevant
command would resemble something like...

ATTACH RQ0: /dev/sda

(where 'sd' is the driver, and 'a' is the controller).

This works with any and all emulators since to UNIX, unlike Windows, everything
is a file. "Devices" are not special entities to open()/close() calls, etc.

I ran into this sort of problem in reverse when I was playing with various
VMS emulators under Windows - there was no way to stick a physical VMS
distro CD into the CD-ROM drive and have the emulator access it - when I
sought help, the only answer I got was to use Linux :-) or to extract an
image file of the CD and stick that on the Windows box and 'mount' that.

If anyone has any solutions to this difference in operation between the
two environments, I'd love to hear it.


Ethan Dicks, A-130-S      Current South Pole Weather at 02-Sep-2004 02:50 Z
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Received on Wed Sep 01 2004 - 22:14:49 BST

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