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Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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19.4.2.2 Bytes From Index Format - 100b
Format of the Dlist sent during the data out phase when Dlist Format is Bytes From Index format (100b) and FmtData is set to
one.
Table 105: Defect Descriptor - Bytes From Index Format (for n = 1 defects)
Each defect descriptor for the Bytes From Index format specifies that the sector containing this byte be marked defective. The
defect descriptor is comprised of the cylinder number of the defect, the head number of the defect, and the number of the
defect byte relative to index.
Note: If a Byte From Index entry, when converted to a physical sector, is equal to the physical sector of a Plist entry and
DPRY = 1, then the entry is not added to the Glist.
Byte
BIT
76543210
0 - 2
(MSB)
Cylinder Number of Defect
(LSB)
3 Head Number of Defect
4 - 7
(MSB)
Defect Bytes from Index
(LSB)
8n
8n + 1
8n + 2
(MSB)
Cylinder Number of Defect n
(LSB)
8n + 3 Head Number of Defect n
8n + 4
8n + 5
8n + 6
8n + 7
(MSB)
Defect (n) Bytes from Index
(LSB)