Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!rutgers!bellcore!faline!ulysses!mhuxt!m10ux!braun
From: braun@m10ux.UUCP (MHx7079 mh)
Newsgroups: comp.os.minix
Subject: All these hard disk problems
Message-ID: <404@m10ux.UUCP>
Date: Wed, 21-Oct-87 11:01:18 EDT
Article-I.D.: m10ux.404
Posted: Wed Oct 21 11:01:18 1987
Date-Received: Sat, 24-Oct-87 16:48:33 EDT
Organization: AT&T Bell Labs, Murray Hill
Lines: 20
Keywords: disks,junk

I've been looking at all these postings about hard disk controllers
that won't work under Minix, and I am starting to wonder.
Is the hardware interface to the PC disk controllers screwed up, or what?
I assume that by now, the Minix driver code has gotten the general bugs out
of it.  Is the problem due to different controllers trying to
remain backwards (bug-for-bug) compatible with the original PC controller?
Does the wierdness of the DMA controller have anything to do with it?

The reason that I wonder is that I have put together SCSI disk and tape
systems for my Z-80 CP/M computer, and I found that once my SCSI host
adapter and driver code worked correctly, I had none of the types
of problems I see in the PC world.  In fact, it took about an hour
to plug a SCSI tape drive into the system and get it working.

Is this another example of IBM's "technical excellence"?

-- 

Doug Braun		AT+T Bell Labs, Murray Hill, NJ
m10ux!braun		201 582-7039