Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cbmvax!brim
From: brim@cbmvax.commodore.com (Mike Brim - Product Assurance)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: RLL vs IDE
Message-ID: <15206@cbmvax.commodore.com>
Date: 17 Oct 90 12:50:19 GMT
References: <40552@eerie.acsu.Buffalo.EDU>
Reply-To: brim@cbmvax.commodore.com (Mike Brim - Product Assurance)
Organization: Commodore, West Chester, PA
Lines: 45

In article <40552@eerie.acsu.Buffalo.EDU> axaris@acsu.buffalo.edu (vassilios e axaris) writes:
> I'd like to thank the fellow netters that have replied to my query on IDE and
> RLL drives. However, I have received personal messages mentioning that Unix
> and Xenix do not work properly with IDE drives. Does this apply to all IDE
> drives or just a few particular ones?
> Thanks again,

I have run the following Unix and Xenix operating Systems on the following HD's:

 - UHC Unix System 5 ver.4 release 1.0
 - Interactive Unix System 5 ver 4 release 2.0.2
 - SCO Xenix System 5 ver ? release 2.3.2

I do not claim to know Unix/Xenix 100%.  The tests on these operating systems 
include installation (w/surface analysis), and hard drive writes/reads/compares.
No long term testing was performed (ie. running for 6 months)


Drives :

 - Conner CP-3204F  200megs
 - Quantum 80AT Prodrive  80megs
 - Quantum 40AT Prodrive  40megs
 - Quantum 105AT Prodrive LPS  105megs
 - Quantum 52AT Prodrive LPS  52megs
 - Seagate ST-1239A  200megs

All drives are IDE and of the latest rev (except for the Conner).  They all 
ran with no apparent problems.

Since revs change quickly check with each drive maker for their testing results.

BTW, the subject of this topic should not be RLL vs. IDE since most AT 
interfaced IDE drives use 2,7 RLL data coding.

If you received info on IDE that do not work with Unix/Xenix please share that
with the rest of us.  There are others that may need to know.  Thank you.
-- 
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Disclaimer: My company knows not what I say (or do).

Mike Brim			     |	Commodore Electronics Limited
PC Analyst - System Evaluation Group | 	West Chester, PA 19380
Product Assurance		     |	InterNet: brim@cbmvax.commodore.com
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