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  • US5640541A Adapter for interfacing a SCSI bus with an IBM system/360/37

    From Louis Ohland@21:1/5 to All on Sat Nov 13 13:58:40 2021
    https://patents.google.com/patent/US5640541?oq=ibm+sdlc

    Huh.

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    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gfretwell@aol.com@21:1/5 to All on Sat Nov 13 17:06:27 2021
    On Sat, 13 Nov 2021 13:58:40 -0600, Louis Ohland <ohland@charter.net>
    wrote:

    https://patents.google.com/patent/US5640541?oq=ibm+sdlc

    Huh.

    Maybe they really mean AS/400. I have never seen any 360/370 I/O that
    was SCSI.
    OTOH it might just be for the 370 emulator PCs (9371) that used a pair
    of mod 80s. One drove the PC I/O and the other the 370 emulator
    hardware. Sears dumped about 1000 of them in the 96-97 time frame.
    They were running 370 DOS/VSE. (not PC DOS)

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  • From Kevin Bowling@21:1/5 to gfretwell@aol.com on Sat Nov 13 18:10:37 2021
    On 11/13/21 15:06, gfretwell@aol.com wrote:
    On Sat, 13 Nov 2021 13:58:40 -0600, Louis Ohland <ohland@charter.net>
    wrote:

    https://patents.google.com/patent/US5640541?oq=ibm+sdlc

    Huh.

    Maybe they really mean AS/400. I have never seen any 360/370 I/O that
    was SCSI.
    OTOH it might just be for the 370 emulator PCs (9371) that used a pair
    of mod 80s. One drove the PC I/O and the other the 370 emulator
    hardware. Sears dumped about 1000 of them in the 96-97 time frame.
    They were running 370 DOS/VSE. (not PC DOS)


    Dave McGuire has a 9371 at the Large Scale Systems Museum in Pittsburgh
    if anyone is ever out that way it's well worth a visit https://www.largescalesystemsmuseum.org/

    --- SoupGate-Win32 v1.05
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  • From Kevin Bowling@21:1/5 to Louis Ohland on Sat Nov 13 18:14:53 2021
    On 11/13/21 12:58, Louis Ohland wrote:
    https://patents.google.com/patent/US5640541?oq=ibm+sdlc

    Huh.

    http://web.archive.org/web/19980212070911/http://www.openconnect.com/products/occ_desc.shtml

    --- SoupGate-Win32 v1.05
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  • From gfretwell@aol.com@21:1/5 to kevin.bowling@kev009.com on Sat Nov 13 23:58:01 2021
    On Sat, 13 Nov 2021 18:14:53 -0700, Kevin Bowling
    <kevin.bowling@kev009.com> wrote:

    On 11/13/21 12:58, Louis Ohland wrote:
    https://patents.google.com/patent/US5640541?oq=ibm+sdlc

    Huh.

    http://web.archive.org/web/19980212070911/http://www.openconnect.com/products/occ_desc.shtml

    We used SCSI in the RAMAC back in the 90s but the mainframe connection
    was either bus/tag or more likely ESCON (fiber)
    RAMAC (1990 style) was just a 19" rack full of 3.5" SCSI drives in
    RAID5 arrays. (11 at a pop)

    History note
    The original 305 RAMAC was a drum back in the Eisenhower
    administration. We still had one in the Pentagon in the late 60s. The government never throws anything away. ;-)
    I am betting they had some kind of dark program running on it and they
    never rewrote the software for anything newer. It was a high security
    room I only got in once (tarps on the printers and an armed Marine
    with his finger in my belt loop making sure I wasn't looking around).
    Ah the good old days.

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