Message-Id: <200203280001.g2S01cb12720@lmail.actcom.co.il>
Content-Type: text/plain; charset=US-ASCII
From: Itai Nahshon <nahshon@actcom.co.il>
Reply-To: nahshon@actcom.co.il
To: Alan Cox <alan@lxorguk.ukuu.org.uk>, pavel@suse.cz (Pavel Machek)
Subject: Re: IDE and hot-swap disk caddies
Date: Thu, 28 Mar 2002 02:01:25 +0200
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), pavel@suse.cz (Pavel Machek),
        andre@linux-ide.org (Andre Hedrick), wakko@animx.eu.org (Wakko Warner),
        linux-kernel@vger.kernel.org (Linux Kernel Mailing List)
In-Reply-To: <E16qMGm-0006J0-00@the-village.bc.nu>
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Sender: linux-kernel-owner@vger.kernel.org

On Thursday 28 March 2002 00:51 am, Alan Cox wrote:
> > I have seen USB mass storage devices with ide connector on them, so it
> > is certainly possible to translate between scsi and ide. If it makes
> > sense from performance standpoint.... I don't know.

I have one of these. The performance that I get is really poor and there
are some quirks but it is still useful. I will be _very happy_ when I will be 
able to use it for system installation/upgrade (which did not happen yet).

>
> SCSI->IDE command translation isnt too hard providing you stick to simple
> stuff and blindly ignore things like ATAPI, SMART, and all the control
> stuff. The moment you get into the complex stuff its deeply unfunny.
>

What are the prospects of seeing SCSI and IDE code (and internal
programming interface) unified? How much can be unified until
performace considerations and code complexity mandates a separation?

-- Itai
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