Defect List Header; Bytes From Index Format (100B); Physical Sector Format (101B) - IBM DDRS-39130 - Ultrastar 9.1 GB Hard Drive Specifications

Note: The file will terminate the Data In phase when the Allocation Length has been transferred or when
all available Defect Data has been transferred to the initiator, whichever is less.
The Read Defect Data contains a four byte header, followed by zero or more defect descriptors.

7.16.1 Defect List Header

7 6
BYTE 0
BYTE 1 Rsvd = 0
BYTE 2 (MSB)
BYTE 3
Figure 93. Defect List Header

7.16.2 Bytes from Index Format (100b)

BYTE 0 (MSB)
BYTE 1 Cylinder Number of Defect
BYTE 2
BYTE 3 Head Number of Defect
BYTE 4 (MSB)
BYTE 5 Defect Bytes from Index
BYTE 6
BYTE 7
Figure 94. Defect Descriptors of Bytes from Index Format
Defect Bytes from Index is gotten using the following equation:
Bytes from Index = (Physical Sector Number) * N
Where: N = Bytes per sector (512 Bytes)

7.16.3 Physical Sector Format (101b)

124
O E M Spec. of DDRS-3xxxx
BIT
5 4 3 2
Defect List Header
Rsvd = 0
Plist Glist Defect List Format
Defect List Length
Defect Descriptors
1 0
(LSB)
(LSB)
(LSB)