*BSD News Article 54256


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From: pusateri@macbeth.cs.duke.edu (Thomas Pusateri)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: EIDE LBA Mode and PIO 3
Date: 10 Nov 1995 12:02:28 -0500
Organization: Duke University Computer Science Dept.; Durham, N.C.
Lines: 34
Message-ID: <4800j4$h04@macbeth.cs.duke.edu>
References: <47llrg$s01@macbeth.cs.duke.edu> <47oo0q$l5q@uriah.heep.sax.de>
NNTP-Posting-Host: macbeth.cs.duke.edu
Keywords: LBA IDE

In article <47oo0q$l5q@uriah.heep.sax.de> j@uriah.heep.sax.de (J Wunsch) writes:
>Thomas Pusateri <pusateri@macbeth.cs.duke.edu> wrote:
>
>>I have an EIDE controller and my bios has a bunch of options like
>>Logical Block Addressing (I have 1400 cyl), and different modes 
>>called Standard, Fast PIO 1, 2, and 3. The default mode for my
>>disk is Fast PIO 3 which I have no idea what it means.
>
>If you don't know what it means, why did you buy it?

I haven't seen a pentium laptop with a SCSI disk yet.

I must admit that consumers rarely ask to go through the bios setup
before buying a computer mail order!

>Complain at those guys who've been selling That Crap (tm).

I merely asked what it meant. I believe I have discovered that there are
flags on the wd0c controller line in the config file that allow you to
specify multi sector transfers. I have put my bios in PIO 3 mode and
set the flags to 3 and things seem to be working fine. I haven't done
any disk performance tests to determine if it is indeed transferring
in a faster mode.

>(I could provide you with realistic papers that have been calling it
>`crap' actually before it hit the market in the way it does now.
>Alas, i guess you won't be able reading them, they're in German.)

I'll assume you're just tired and not rude.

Thanks for the response,
Tom