Re: Cylinder limits jumper for drives over 32GB

From: Andre Hedrick (andre@linux-ide.org)
Date: Sun Mar 26 2000 - 18:39:29 EST


On Sun, 26 Mar 2000, Dan Hollis wrote:

> On Sun, 26 Mar 2000, Andre Hedrick wrote:
> > We have already increased the reporting capacity of
> > "/proc/ide/idex/hdx/geometry" to allow for 137GB limit.
>
> We are already halfway there, thanks to IBM's 75gb drives. I wonder how
> long it will take us to hit the limit.

12-18 months.........

Their is discussion at T13 on how to double stack the high-low-cyls for
accessing beyond........ATA-6 proposals......

d98142r1 Really big LBA proposal 2/22/99 landis
d98142r2 Really big LBA proposal 4/27/99 landis
d98142r3 Really big LBA proposal 8/25/99 landis
d99114r0 ATA-6 expanded addressing 4/20/99 rooke
d99141r1 Project proposal for ATA/ATAPI-6 10/29/99 milligan
d99144r0 SET MAX security correction 11/19/99 evans
e00101r0 48-bit LBA proposal 1/11/00 mclean
e00101r1 48-bit LBA proposal 1/14/00 mclean

It appears that McLean of Maxtor has the leading proposal in design.

I believe that it has something to do with using the residuals of the
task file registers........

Problem......Linux does not yet have direct access calls to the
"task file registers"..........

Andre Hedrick
The Linux ATA/IDE guy

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Fri Mar 31 2000 - 21:00:18 EST