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From: saltiel@cdstar.UUCP (Jack Saltiel)
Newsgroups: net.periphs
Subject: Re: Using a Fujitsu M2333k disk on PDP 11/73
Message-ID: <210@cdstar.UUCP>
Date: Wed, 11-Dec-85 14:13:08 EST
Article-I.D.: cdstar.210
Posted: Wed Dec 11 14:13:08 1985
Date-Received: Fri, 13-Dec-85 08:07:08 EST
References: <1558@emory.UUCP>
Distribution: net
Organization: Cambridge Digital Systems, Inc.
Lines: 30
Summary: du = mscp

In article <1558@emory.UUCP>, kim@emory.UUCP (Kim Wallen {Psychology}) writes:
> 
> We would like to use a Fujitsu M2333k 337 mbyte drive on our PDP 11/73
> running HCR's UNITY (SYS III based UNIX (TM)) operating system.
> According to our supplier for the disk drive (Cambridge Digital) the
> drive uses an Emulex QD32 controller which emulates a 'du' device.
> HCR does not have a driver for such a combination.  Does anyone out
> there know what a 'du' device is?  Is there anyone using a similar
> combination of machine and controller who could point us to a 
> source for the appropriate driver?  If necessary we are willing to
> go to another UNIX (TM) to get this combination on our machine.
> 
Yah: the "DU" device is an MSCP type device. This includes, from
DEC, RX50, RD5[123] on the Qbus via a RQDX[123] controller.
It also includes the RA60 and RA8[01] via the UDA50 controller on
the Unibus and will soon include the RA60/80/81 in the Qbus via
the KDA50 controller. Emulex's QD32 does the Qbus emulation for
you. HCR used to support RA type devices, so if they convert their
driver for the Qbus, you got it made. However, they tend to be
very provincial about those kinds of changes. Venix-11, however,
which is available in Version 7 and System V varieties, will
support this device type handily.
(Small commercial: If you need help, call us @617-491-2700)
-- 
					Jack Saltiel
					Cambridge Digital Systems
					{wjh12,talcott}!cdstar!saltiel

	"Here's to plain speaking and clear understanding."
	"I like talking with a man who likes to talk."