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From: d...@kolvi.hut.fi (Dag Nygren)
Newsgroups: comp.unix.xenix
Subject: Corollary ??
Keywords: serialmux
Message-ID: <171@kolvi.hut.fi>
Date: 4 May 89 20:17:55 GMT
Reply-To: d...@kolvi.hut.fi (Dag Nygren)
Organization: Helsinki University of Technology, Finland
Lines: 17
Hi there,
I have been trying to get hold of a company named Corollary Inc.
Address ?? Phone number ?? Telex ??
Do they do anything else than serial multiplexers ??
Experience with their products ??
Any pointer would be greatly appreciated.
Dag Nygren d...@atomsf.uucp or d...@kolvi.uucp
Oy Atomica Ab
Box 22
02171 ESPOO, FINLAND
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!uxc!deimos.cis.ksu.edu!rutgers!att!chinet!mcdchg!mcdphx!hrc!swusrgrp!jeff
From: j...@swusrgrp.UUCP (Jeff Tye sys adm)
Newsgroups: comp.unix.xenix
Subject: Re: Corollary ??
Summary: best mux board on the market
Keywords: serialmux
Message-ID: <1203@swusrgrp.UUCP>
Date: 14 May 89 17:50:07 GMT
References: <171@kolvi.hut.fi>
Organization: southwest!/usr/group - Phoenix, AZ
Lines: 31
In article <1...@kolvi.hut.fi>, d...@kolvi.hut.fi (Dag Nygren) writes:
>
> I have been trying to get hold of a company named Corollary Inc.
Their phone is (714) 250-4040. Talk to Alan Slipson.
> Do they do anything else than serial multiplexers ??
They market a multiprocessor 386 based AT box in an OEM form. Their
major customer is Zenith with their Z1000 (or Z10000?).
> Experience with their products ??
Their 8X4 mux board and 8 port terminal concentrator is the best on the
market IMHO. I've used Computone, Digiboard, Mitsubishi, and have tested
a number of others. I pulled Computone boards out of several of my customer's
sites and replaced them with the Corollary product to solve a number of
problems.
They have the best software drivers for XENIX and 386/ix UNIX. Their
transparent or passthru print driver is the best I've ever seen or used.
The 8X4 mux allows for 4 of the 8 port terminal concentrators to be used
in a system for a total of 32 ports off of one slot. Four of the 8X4 mux
boards can be used in a system using only one interupt line. That's 128
ports on one AT box (a bit of an overkill :-)
--
Jeff Tye
southwest!/usr/group The Southwest U.S. chapter of /usr/group
c/o Copperstate Business Systems voice (602) 244-9391
ncar!noao!asuvax!hrc!swusrgrp!jeff swusrgrp (602) 275-2541
Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!okstate!romed!aostul!steveb
From: ste...@aostul.UUCP (Steve Bogner)
Newsgroups: comp.unix.xenix
Subject: Caching disk controllers and 386 multiprocessor
Keywords: multiprocessing, disk controller
Message-ID: <10@aostul.UUCP>
Date: 26 May 89 15:34:10 GMT
Organization: AOS Network Solutions
Lines: 15
I am trying to put together a very high performance SCO Xenix
system and would like to know if anyone out there has had
experience (good or bad) with the caching disk controllers made
by DPT (Distributed Processing Technologies). They say you can
have a hardware cache of up to 16 MB, reducing disk access to .6
ms. Also, a company called Corollary makes a 386 multiprocessing
board for SCO Xenix called the 386/mp. Up to four 386's can be
added to the server. Has anyone actually done this? I'm using
the ALR 33/386 server with 16 MB of 80 ns RAM and Maxtor 4380E
disks. Please reply by e-mail.
Steve Bogner
!uunet!romed!aostul!steveb
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!noao!asuvax!hrc!swusrgrp!jeff
From: j...@swusrgrp.UUCP (Jeff Tye sys adm)
Newsgroups: comp.unix.xenix
Subject: Re: Caching disk controllers and 386 multiprocessor
Summary: DPT is great!
Keywords: multiprocessing, disk controller
Message-ID: <1216@swusrgrp.UUCP>
Date: 4 Jun 89 20:52:11 GMT
References: <10@aostul.UUCP>
Organization: southwest!/usr/group - Phoenix, AZ
Lines: 45
In article <1...@aostul.UUCP>, ste...@aostul.UUCP (Steve Bogner) writes:
>
> I am trying to put together a very high performance SCO Xenix
> system and would like to know if anyone out there has had
> experience (good or bad) with the caching disk controllers made
> by DPT (Distributed Processing Technologies). They say you can
> have a hardware cache of up to 16 MB, reducing disk access to .6
> ms.
I've been using and selling the DPT caching disk controllers for over
a year and a half. I highly recommend the product and the company. The
performance benefits are outstanding. I like them so much that I propose
them with every system I sell. The difference is like night and day.
Some tips on using them:
1) Don't use it unless you have the RAM card with it. 512K is not
enough by itself. Trust me. I've tried it in a variety of
configurations and 2.5MB cache RAM or more is needed.
2) Lower your disk buffers in Xenix to 256K when using the DPT card.
You get more RAM for XENIX that way and the DPT does the rest for
you.
3) Use the DPT format utility and *NOT* the Xenix install format. DPT
uses a special formatting algorithm that skews the sectors for
optimum performance.
> Also, a company called Corollary makes a 386 multiprocessing
> board for SCO Xenix called the 386/mp. Up to four 386's can be
> added to the server. Has anyone actually done this? I'm using
> the ALR 33/386 server with 16 MB of 80 ns RAM and Maxtor 4380E
> disks. Please reply by e-mail.
You must use Corollary's motherboard in order to use their multiprocessing
capabilities. The AT buss is too slow for multiprocessing so Corollary
created a new AT compatible motherboard with dedicated 'C' buss for memory
and data transfers. It is a true multiprocessing buss with cache coherency
and all that stuff. Zenith is OEMing the product in their Z10000 (?) line.
--
Jeff Tye
southwest!/usr/group The Southwest U.S. chapter of /usr/group
c/o Copperstate Business Systems voice (602) 244-9391
ncar!noao!asuvax!hrc!swusrgrp!jeff swusrgrp (602) 275-2541
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