Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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Following is the format of the data sent by the Initiator during the DATA OUT phase.
Table 201:Format of Reassign Blocks data
•Defect List Length must be 4, 8, 12, or 16. Otherwise, the drive returns Check Condition with a sense key of Illegal
Request.
•Defective Logical Block Address is four bytes in length. The Initiator can specify from 1 to 4 Defective Logical
Block Addresses according to the Defect List Length from 4 to 16, respectively. LBAs are not required to be in
ascending order.
Byte Bit
7654321
0 Reserved = 0
1 Reserved = 0
2-3 (MSB) Defect List Length = 4/8/12/16
(LSB)
4-7
(MSB)
Defect Logical Block Address 1
(LSB)
8-11
(MSB)
Defect Logical Block Address 2
(LSB)
12-15
(MSB)
Defect Logical Block Address 3
(LSB)
16-19
(MSB)
Defect Logical Block Address 4
(LSB)