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Command Specifications
242 C141-C013
3. Even if defect data of the type specified in the CDB do not exist in the defect
list (P List or G List) (if the defect list is empty), "1" is displayed in the
"PList" bit and the "GList" bit in the header transferred to the INIT
corresponding to the specification in the CDB.
4. By the INIT issuing this command specifying "4" in the "Transfer Byte
Length" field in the CDB, and by investigating the information in the header
transferred by the HDD, it can know the length (number) of data included in
the P List and G List.
5. Depending on the combination of defect data type specifications and format
specifications, the following conditions exist concerning the transferred
defect data, so caution is necessary.
Table 4.45 Defect data conditions
Defect List Format PList GList
Block Address Format 2) 2)
Byte Distance from the Index Format 1) 1), 3)
Physical Sector Address Format 1) 1)
1) Regardless of the size of the User Space, all the defect position
information for the disk media other than the system space is reported.
Defect position information is also reported for areas which cannot be
clearly accessed from the INIT, such as the spare sectors for alternate
blocks.
2) Logical data blocks which have undergone slip processing due to
defective sectors, and logical data blocks which have undergone alternate
processing, are reported. Defect position information is not reported for
areas which cannot be clearly accessed from the INIT (areas which do
not have logical block addresses) such as cylinders and sectors, etc.
which are not used as User Space or CE Space.
3) The byte position which indicates the first byte in defective sector data is
reported.