Re: [PATCH] speed up SATA

From: Jeff Garzik
Date: Sat Mar 27 2004 - 18:14:04 EST

Stefan Smietanowski wrote:
What will happen when a PATA disk lies behind a Marvel(ous) bridge, as
in most SATA disks today?

Larger transfers work fine in PATA, too.

WRT bridges, it is generally the best idea to limit to UDMA/100 (udma), but larger transfers are OK.

Is large transfers mandatory in the LBA48 spec and is LBA48 really
mandatory in SATA?

Yes and no, in that order :) SATA doesn't mandate lba48, but it is highly unlikely that you will see SATA disk without lba48.

Regardless, libata supports what the drive supports. Older disks still work just fine.


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