Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!bagate!cbmvax!grr
From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.sys.dec
Subject: Re: VAX 750 and RP06s
Message-ID: <15904@cbmvax.commodore.com>
Date: 16 Nov 90 05:07:41 GMT
References: <15696@venera.isi.edu>
Reply-To: grr@cbmvax.commodore.com (George Robbins)
Distribution: na
Organization: Commodore, West Chester, PA
Lines: 26

In article <15696@venera.isi.edu> britt@venera.isi.edu (Benjamin Britt) writes:
> 
> How does one connect a VAX 750 to one or more RP06s?  The Hardware
> handbook says to use an Massbuss adaptor (MBA).  Is this a board
> or set of boards?  Does it directly connect to an RP06?

The massbus adapter is a signal board in the 750 and cable harness that goes
between pins on the backplane and a rectangular "massbus" connector on the
rear of the 750.

The RP06 drive also requires a device to interface the drive the massbus, this
is a separate cabient that stands next to each RP06.  The only massbus drive that
have integrated controllers are the RM80 and RP07.

You'll also need some massbus cables and a terminator.

Unless you're already stuck with the RP06's, it's better to look at something
like an Emulex SC750 or SC700X and Fujitsu Eagle drive.  These are easy to find
and cheap as used equpiment.  There are also infinite variations of unibus
SMD/SCSI controllers and drives, depending on how much "system integration"
you want to do yourself.

-- 
George Robbins - now working for,     uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing:   domain: grr@cbmvax.commodore.com
Commodore, Engineering Department     phone:  215-431-9349 (only by moonlite)