Quantum 10K II - Manual (Page 216)

SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–149
READ DEFECT DATA Command (12) (B7h) (continued)
Bit
Byte
7 6 5 4 3 2 1 0
0 Reserved
1 Reserved Plist Glist Defect List Format
2 - 3 Reserved
4 - 7 Defect List Length
Figure 5–68 Defect List Header — Data Format
Table 5–70 Defect List Header — Field Descriptions
Field Description
PList Primary Defect List. 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.
GList Grown Defect List. 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.
Defect List Format This field indicates the format of the descriptors returned. If this differs from
the format requested in the Command Descriptor Block, a recovered error is
returned.
Defect List Length This indicates the actual number of bytes that follow the defect list header.
The drive truncates the list if the allocation length is not sufficient to
accommodate the entire list (CHECK CONDITION status is not returned when
this happens). The initiator is responsible for comparing the defect list length
and the allocation length to ensure that a partial list was not received.