Samsung SpinPoint M9T Product Manual page 78

If the ID is read correctly, the data loaded in the buffer is written to the data field of the sector, followed by
the ECC bytes. Upon command completion, the Command Block registers contain the cylinder, head, and
sector number of the last sector written in CHS mode or the logical block address in LBA mode.
If an error occurs during a write of more than one sector, writing terminates at the sector where the error
occurs. The Command Block registers contain the cylinder, head, and sector number of the sector where the
error occurred in CHS mode or the logical block address in LBA mode. The host may then read the command
block to determine what error has occurred and on which sector it occurred.
Spinpoint M9T Product Manual REV 1.0
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