On Sat, 13 Nov 2021 18:14:53 -0700, Kevin Bowling
<
[email protected]> 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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