Seagate Fibre Channel Interface User Manual
Page 296
282
Fibre Channel Interface Manual, Rev. D
Field definitions (listed alphabetically)
CDB (Command Descriptor Block)
The disc drive interprets the P and G bits (bits 4 and 3 of byte 2 of the CDB) as follows:
Bit P Bit G Interpretation
0
0
Return Defect List header only. Target returns only the defect list header.
0
1
Return the growth “G” list only. This list reflects the grown or “G” list as defined in Section 12.5.
1
0
Return the manufacturer’s original ETF list only. This list reflects the manufacturer’s original ETF list. These
defects may or may not have been reallocated, depending on the last Format command received (the last
format may or may not have requested the P list flaws be reallocated during the format function).
1
1
Return all lists. The returned list contains all of the requested drive’s defect lists (i.e., P, G, C, and D) regard-
less of whether these lists have been reallocated by the drive.
Defect List Format
100
A list in the Bytes from Index format.
101
A list in the Physical Sector format.
Defect List Length and Defect Descriptor Bytes
If the P and G bits are 0 0, the Defect List Length will be 0 and no Defect Descriptor bytes are sent to the initiator. See
Tables 102 and 103 for the format of Defect Descriptor bytes.
Table 185: Defect List (12) Header description
Bit
Byte
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
Reserved
1
0
0
0
P
G
1
0
0 or
Reserved
CDB
1
0
1
Defect List Format
2
Reserved
3
Reserved
4
(MSB)
Defect List Length
5
6
7
(LSB)
0–n
Defect Descriptor Bytes
Table
number