[net.unix-wizards] Looking for feedback on VAX 11/782 upgrade and Un*x

dgj@ritcv.UUCP (Daryl G Johnson) (11/29/84)

We are exploring the feasibility of upgrading our two VAX 11/780's to
782's.  What I'm looking for is anyones experience in running Berkeley
4.2BSD Un*x on a 782 if possible or that it's not possible.

Thank you in advance.
			Daryl
=========================================================================
Daryl G Johnson, Computer Systems & Facilities Administrator
Rochester Institute of Technology, Rochester NY
UUCP:		{allegra,seismo}!rochester!ritcv!dgj
ARPA:		ritcv!dgj@Rochester.ARPA
CSNET:		dgj%rit@csnet-relay or dgj@rit

boyle@ANL-MCS.ARPA (11/29/84)

Re:  message of Daryl G Johnson

You might want to contact the folks at Purdue about doing a
Purdue-style upgrade to your 780.  Not only is it cheaper (about $75k
including FPA), but they have modified 4.2 (and 4.1) to use it.  (In
this upgrage, the second CPU replaces the terminator on the right end
of the SBI; hence it shares access to everything on the SBI.)  After
some negotiation, we persuaded our local DEC maintenance office to
install the second CPU and maintain the system.

We have not yet used the second CPU extensively (no 4.2 license yet),
but we have tested it, and it seems to work fine.

Doug Kingston <dpk@BRL-TGR> (11/30/84)

We have been using a Purdue style Dual-Vax for several
months now.  It is an elegant and easy, if non-standard
upgrade if you have access to some competent hardware
people (either in house or contract).  Ours is maintained
by our third party maintanence contractor.  We built it
ourselver for less than $70K.  Makes a 780 almost tolerable,
and takes up far less power, AC, and space.

				-Doug-