From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
Andries Brouwer <aebr@win.tue.nl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ide: limit drive capacity to 137GB if host doesn't support LBA48
Date: 14 Aug 2003 12:03:27 +0100 [thread overview]
Message-ID: <1060859006.5569.31.camel@dhcp23.swansea.linux.org.uk> (raw)
In-Reply-To: <3F3B53CC.8030209@cyberone.com.au>
On Iau, 2003-08-14 at 10:18, Nick Piggin wrote
> >This change is a bad idea. Its called "addressing" because that is what
> >it is about (see SATA and ATA specs). In future SATA addressing becomes
> >a 0,1,2 value because 48bits isnt enough, it may get more forms beyond
> >that.
> >
>
> Wow! Isn't that over 100 thousand TB? ;)
It depends how they are used and its more about message formats. LBA48 is
a pretty evil hack based on keeping some compatibility by writing some
registers twice and having the drive know about it.
next prev parent reply other threads:[~2003-08-14 11:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-14 1:24 Bartlomiej Zolnierkiewicz
2003-08-14 8:53 ` Alan Cox
2003-08-14 9:16 ` Andries Brouwer
2003-08-14 9:18 ` Nick Piggin
2003-08-14 11:03 ` Alan Cox [this message]
2003-08-14 12:48 ` Bartlomiej Zolnierkiewicz
2003-08-14 13:44 ` Alan Cox
2003-08-14 15:14 ` Jeff Garzik
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