Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
95
18.4.3.2
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 67 Defect Descriptor - Bytes from Index Format (for n = 1 defects)
Byte
Bit
7
6
5
4
3
2
1
0
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)
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.