From owner-freebsd-questions  Tue Jun  5  7:42:56 2001
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Date: Tue, 5 Jun 2001 09:42:53 -0500
From: Dave Duchscher <daved@tamu.edu>
To: Amin Omidzadeh Khosrowshahi <amin@sharif.edu>
Cc: questions@FreeBSD.ORG
Subject: Re: UDMA100 .
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In-Reply-To: <Pine.LNX.4.10.10106051226450.1508-100000@Sina.sharif.ac.ir>; from amin@sharif.edu on Tue, Jun 05, 2001 at 12:30:28PM +0430
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On Tue, Jun 05, 2001 at 12:30:28PM +0430, Amin Omidzadeh Khosrowshahi wrote:
> 
> Hello,
> 
> I want to set up a FreeBSD server on a ATA100 HardDisk and want to know
> if FreeBSD 4.3 kernel supports UDMA100 like 2.4.5 Linux kernel .

Yes, FreeBSD 4.3 supports UDMA100.

> If it does, how I can set it up?

The driver will automatically detect the fastest mode available for the
drive on boot up.  You should see a line similar to the one below:

  ad0: 58644MB <IBM-DTLA-307060> [119150/16/63] at ata0-master UDMA100

You should also consult the ata(4) man page as it has lots of useful
information about the driver's capabilities.

DaveD

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