Re: How do I turn on DMA for ide-scsi DVD drives

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To: For users of Fedora <fedora-list@xxxxxxxxxx>
Subject: Re: How do I turn on DMA for ide-scsi DVD drives
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 4 Feb 2008 12:19:34 +0000
Cc: spmirowski@xxxxxxx
In-reply-to: <47A14280.3010702@xxxxxxx>
Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903
References: <47A14280.3010702@xxxxxxx>
Reply-to: For users of Fedora <fedora-list@xxxxxxxxxx>

On Wed, 30 Jan 2008 19:37:36 -0800
spmirowski <spmirowski@xxxxxxx> wrote:

> Hello,
> 
> Back when Fedora handled disc drives as ide, I would use hdparm to turn 
> on DMA.  Now that Fedora 8 seems to run them as SCSI devices, hdparm 
> can't tell them to turn on DMA.  Any ideas how to get them blazing fast 
> again?

Its always done automatically by libata.

Alan

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