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Path: utzoo!hcrvax!hcradm!steve
From: steve@hcradm.UUCP (Steve Pozgaj)
Newsgroups: net.periphs
Subject: Re: Using a Fujitsu M2333k disk on PDP 11/73
Message-ID: <2431@hcradm.UUCP>
Date: Mon, 9-Dec-85 18:16:22 EST
Article-I.D.: hcradm.2431
Posted: Mon Dec  9 18:16:22 1985
Date-Received: Tue, 10-Dec-85 00:31:24 EST
References: <1558@emory.UUCP> <665@mit-eddie.UUCP>
Reply-To: steve@hcradm.UUCP (Steve Pozgaj)
Organization: Human Computing Resources, Toronto
Lines: 26

In article <665@mit-eddie.UUCP> jbs@mit-eddie.UUCP (Jeff Siegal) writes:

>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.
		...
>>HCR does not have a driver for such a combination.  Does anyone out
>>there know what a 'du' device is?
		...
>A 'DU' device is one which conforms to DEC's MSCP protocal.  A single
>driver is able to control any MSCP device.  DEC devices which use this
>protocal include the RA81 and RA80.  Thus, what you need is a RA81 
>driver.  
>
>Jeff Siegal - MIT EECS (jbs@mit-eddie) 

I'd like to point out, for the record, that HCR *does* supply an RA81 driver
(as well as RA60 and RA80) in our PDP/UNITY product, and have since Oct/83.
The confusion stems from the fact that we knew nothing about which DEC device
Mr. Wallen's configuration emulates, and hence his misunderstanding that that
means we don't support the device.  We thank Mr. Siegal for pointing out
the facts.

Steve Pozgaj,
Manager, Customer Services.