Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!cbmvax!grr
From: grr@cbmvax.UUCP (George Robbins)
Newsgroups: comp.unix.ultrix
Subject: Ultrix support for 62n0/63n0 n>2?
Message-ID: <7153@cbmvax.UUCP>
Date: 28 Jun 89 10:08:42 GMT
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 41

Has anybody heard any intersting stories about when DEC will be
supporting any more than dual processors on the 6000 series?

What's the problem?  Is DEC just being coy?  Or are we really
waiting on major OS rework as suggested by the "Ultrix Threads"
paper at Usenix?

It's rather hard to convince managment that a 6000 series machine
now will give incremental upgradability when DEC isn't making any
commitment to run Ultrix on the higher end machines.

I'd do a bit of handwaving, but it seems despite all the polite
noises DEC makes about commitment to Ultrix, when they decide
there is something they don't want to support under Ultrix,
you're going to be a long time waiting before you see anything.


Secondary questions:

Anybody out there running Ultrix on a 6000 series machine?  I'd
be interested in comments, especially from anybody who's added
processors or upgraded from a 6200 to 6300.  What kind of improvment
did you get from adding a second processor or upgrading CPU?

My current thought are around picking up a used 6210 or 6220 and
adding more processors as justifications can be generated and
perhaps upgrading to a 6400 in the distant future.  My priorty is
maintaining response time in a timesharing/fileserver environment
as opposed to raw applications MIPS.

The alternative would be to snag the 8600 our VMS types are using
if they get a 64x0 (they do need application MIPS).  From the
perspective of the 785 I've got now, that 8600 looks really nice,
however it's only 4-6 times as "powerful" and it looks like I'll
have to add 2 extra cabinets just to attach the massbus/unibus
stuff that all fits in the basic 780 cabinetry!

-- 
George Robbins - now working for,	uucp: {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)