🚀 go-pugleaf

In article <1992Nov18.221608.636@oracle.us.oracle.com> eginsber@oracle.com (Eric Ginsberg) writes:
>Martin,
>  Just when I was leaving San Jose in October we received an SVR4 for the 6000/55.
>  In fact,  I think someone in telecom installed it on a 55 while I was there.  It was a
>  different tape then the one for the 35/65.  The tape came from the SJC software library
>  so you might want to give them a call.

SVR4.0/MP may run on the U6000/55 but has not ever been commercially
released on that platform. It may run on the U6000/50 and U6000/51 too.

However, I was talking about commercial availability:

1.	Performance may not be adequate on those systems due to the
	limitations of the 80386 speed and the max memory supported by
	the hardware.

2.	It was NEVER tested through product verification or integration
	test for all the various revisions and versions of U6000/50/51/55
	systems, including the various stepping 80386 CPU chips / erratas
	or the various I/O board versions etc.

3.	The SJ software library is the same as the SLC one, they move
	stuff electronically between the two.

4.	Earlier versions of SVR4 than the one RELEASED on the U6000/60
	ran on U6000/50/51/55 too, but major functionality was missing,
	such as UPS port control, ECOM port control and ECC memory
	board support.

5.	Don't trust it. What may have been used for a special for you,
	is not what commercial customers will have available.

6.	Outside of specials for some internal use folks, it is not a supported
	product combination.

7.	Such a combination is not licenced by Unisys.

8.	It is not orderable on U6000/50/51/55 platforms.

9.	Some U6000/50/51/55 vintage systems use 60MB QIC-24 tape
	drives and the distribution media is 150MB QIC-150 tapes!

Currently the supported platforms for SVR4.0/MP
are (as of current SVR4.0/MP 1.1 release):

	U6000/15	(80486DX 33MHz)
	U6000/35	(80486DX 33MHz and 80486DX-2 66MHz)
	U6000/60	(80486DX 25MHz)
	U6000/65	(80486DX 33MHz)
	U6000/65	(80486DX 50MHz)

So, in conclusion, yes many releases may kind-of-run on the early
U6000/50/51/55 systems, none are are commercially released and
available to customers.

>
>
>--> Ric

Martin Cryer
SVR4.0/MP Development
U6000 Architectures Group
UNISYS Salt Lake City

All opinions are my own and are not those of my employer.