James Richard Tyrer wrote:
Jeff Garzik wrote:
I suspect it is involved in error detection/correction?
I think that that would still be handled by the disk's controller.
SATA is just like ethernet. You have a PHYsical layer -- the SATA
ports on each side of the links -- that must be managed. The SATA
controller (really the SATA PHY) performs error correction per the
SATA specification.
Yes, I see. The serial link has error correction. But it isn't
involved in correction of disk errors.
Correct.
There are plenty of errors that can occur: host bus (PCI bus) errors,
SATA link errors, DMA errors, ATA command errors (disk errors), and more.
Jeff
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