Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!sharkey!teemc!rolls!westmark!att!tsdiag!scr1!pechter
From: pechter@scr1.UUCP (Bill Pechter)
Newsgroups: comp.sys.att
Subject: Re: 6300 disk I/O, internal ROMs
Summary: 6300 internal hard disk tables work
Keywords: 6300, Hard Disk, WD1002
Message-ID: <350@scr1.UUCP>
Date: 4 Jun 89 13:18:49 GMT
References: <703@soleil.UUCP> <2700001@mwood.UUCP>
Reply-To: pechter@scr1.UUCP (Bill Pechter)
Organization: CONCURRENT COMPUTER,OCEANPORT NJ
Lines: 26

In article <2700001@mwood.UUCP> jim@mwood.UUCP writes:
>
>The internal ROM setting is intended for Olivetti controllers...I tried
>it once (just for kicks!), and it would only recognize 10M out of a 20M
>disk. Actually, a 5:1 interleave is about right for a 6300. I've 
>compared a variety of drives (using a WX-1 controller), and 5:1 always
>gave the best results.

Forgive me Jim, but that's BULL@#$.  The internal roms work fine with the WD.
The only thing you have to do is rejumper the controller.  The internal roms
(1.21 and 1.43) have drive tables in a different order than the WD.  It's
in the docs for the 1.43 upgrade rom kit and in the PC6300 reference manual
(Comcode 405235359 ATTIS Manual no 999-300-205IS.)

This is how the rumors that the 6300 is not an IBM compatible, or that it's
different to work with get started.

Disclaimer: I do not work for AT&T.  I've never worked for AT&T.  The Olivetti
            based PC's they sold are very good.  Their support and support
            policies are lousy.

-- 
Bill Pechter -- Home - 103 Governors Road, Lakewood, NJ 08701 (201)370-0709
Work -- Concurrent Computer Corp., 2 Crescent Pl, MS 172, Oceanport,NJ 07757 
Phone -- (201)870-4780    Usenet  . . .  rutgers!pedsga!tsdiag!scr1!pechter
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