Writing SCSI 9-Track Mag Tapes from Windows/DOS

Mike Ross tmfdmike at gmail.com
Sat Oct 3 03:20:30 CDT 2015

Question: will this kind of hookup work with a USB-SCSI converter? If
so, are there any specific brands and models known to work? I'm
interested in both SE & differential, 50 pin & 68 pin.

Or does it need a traditional Adaptec or similar card?

Preferably under Linux; Windows possible but deprecated.


On Sat, Oct 3, 2015 at 7:52 PM, John Wilson <wilson at dbit.com> wrote:
> On Fri, Oct 02, 2015 at 11:28:49PM -0700, Marc Verdiell wrote:
>>Thanks for your STP2T02.exe  SCSI tape to SIMH program. Ran like a champ
>>under Win98 DOS, first time. It's the only utility that did work out of the
>>box to read a tape from my SCSI-1 HP 88780 9-track into a SIMH file,  out of
>>the 5 or so I tried.  Before I jump to Linux, which seems to be the more
>>straightforward option, does anyone have the reverse tool to write a SIMH
>>image file on a 9 Track tape under Windows/DOS? None of the utilities I
>>found using Windows Tape APIs could deal with my tape SCSI-1 early
>>interface, they all expect some basic (SCSI-2?) functions that are not
> My "ST.EXE" program (available from http://www.dbit.com/pub/ibmpc/util/
> including source) runs on real DOS (not Windows) and can write from an
> E11-format .TAP file (which SIMH uses a garbled version of, but they're
> interchangeable for *even* record lengths which are 99% of the universe)
> to a real tape.  It works on my HP 88780, and my Qualstar 1260S and even
> a DEC TZ30 or TK50Z-GA (which aren't quite full SCSI-1).  Not picky at all.
> "st wput foo.tap" should write your image out.  You need a DOS ASPI driver
> for your SCSI card, and you'll need to use something like "-f scsi5:" on
> the command line (or set the TAPE environment variable) so ST will know
> which SCSI ID (etc.) to use.
> John Wilson
> D Bit


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