From: Robert Hancock <hancockr@shaw.ca>
To: Daniel Rodrick <daniel.rodrick@gmail.com>
Cc: linux-kernel@vger.kernel.org,
kernelnewbies <kernelnewbies@nl.linux.org>,
linux-newbie@vget.kernel.org
Subject: Re: Generic Disk Driver in Linux
Date: Thu, 24 Aug 2006 18:12:00 -0600 [thread overview]
Message-ID: <44EE4050.7020608@shaw.ca> (raw)
In-Reply-To: <fa.RkJMFmeAVY9kZAODCPJ1Yc8Vtww@ifi.uio.no>
Daniel Rodrick wrote:
> Hi List,
>
> I was curious that can we develop a generic disk driver that could
> handle all the kinds of hard drives - IDE, SCSI, RAID et al?
>
> I thought we could use the BIOS interrupt 13H for this purpose, but
> ran into a LOT of real mode / protected mode issues.
>
> Any other ideas?
Aside from the real/protected mode issues (which are pretty much a
show-stopper right there), the performance would be horrible. Usually
the Interrupt 13 code on especially the more advanced controllers like
hardware RAID, etc. is designed solely to function, with little
attention to speed, and the performance tends to be horrible - look at
versions of Ghost that run into DOS and look how long it takes to image
a drive connected to an IBM ServeRAID controller..
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
next parent reply other threads:[~2006-08-25 0:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.RkJMFmeAVY9kZAODCPJ1Yc8Vtww@ifi.uio.no>
2006-08-25 0:12 ` Robert Hancock [this message]
2006-08-24 18:19 Generic Disk Driver in Linux Aleksey Gorelov
2006-08-24 18:36 ` Arjan van de Ven
2006-08-24 19:40 ` Aleksey Gorelov
2006-08-24 20:03 ` Arjan van de Ven
2006-08-24 22:21 ` Aleksey Gorelov
2006-08-25 8:03 ` Arjan van de Ven
2006-08-25 16:50 ` Aleksey Gorelov
2006-08-24 20:36 ` Phillip Susi
2006-08-24 22:27 ` Aleksey Gorelov
2006-08-25 10:21 ` Helge Hafting
2006-08-25 17:05 ` Aleksey Gorelov
2006-08-25 18:19 ` Greg Freemyer
2006-08-28 10:46 ` Helge Hafting
-- strict thread matches above, loose matches on Subject: below --
2006-08-24 12:47 Daniel Rodrick
2006-08-24 13:10 ` Jan Engelhardt
2006-08-24 16:54 ` Ralf Baechle
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