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5-98 Maxtor Atlas 10K V
Table 5-129 READ DEFECT DATA (10) Command-Field Description
1
All in-line spared blocks do not have an associated LBA, and, therefore, will not be
seen in Logical Block Format.
Table 5-130 shows the Block Format returned when the Defect List Format is 000b
Table 5-130 Defect Descriptor-Block Format.
Field Description
PList
When the value is 0, the returned data does not include the Primary Defect List.
When the value is 1, the returned data includes the Primary Defect List. The defects are returned
in ascending order.
GList
When the value is 0, the returned data does not include the Grown Defect List.
When the value is 1, the returned data includes the Grown Defect List. The defects are returned in
order of occurrence.
When both PList and GList are set to 1, the Primary Defect List and the Grown Defect List are re-
turned. The Plist is returned followed by the Glist (the lists are not merged). When both are set to
0, only the Defect List Header (Table 5-132) is reported to the initiator.
Defect List
Format
This field specifies the format in which the defect descriptors are to be returned. The supported for-
mats are:
000b
Block Format (Table 5-130).
1
100b
Bytes from the Index (Figure 5-63). The data returned
from this mode does not include defects outside normal
user space.
101b
Physical Sector Format (Table 5-131). Default format.
The defects returned from this mode do not include de-
fects outside normal user space.
Allocation
Length
If the number of defect descriptors the SCSI device has assigned does not exceed the capability of
the ALLOCATION LENGTH field size but contains a value that is insufficient to transfer all of
the defect descriptors, the defect list length shall not be adjusted to reflect the truncation and the
device server shall not create a CHECK CONDITION status. The initiator is responsible for
comparing the defect list length and the allocation length to determine that a partial list was
received. If the number of defect descriptors the SCSI device has assigned exceeds the capability
of the ALLOCATION LENGTH field size, the drive shall transfer no data and return a CHECK
CONDITION status and the sense key shall be set to ILLEGAL REQUEST and the additional
sense code set to INVALID FIELD IN CBD.
Bit
Byte
76543210
0 - 3 Defective Block Address