HP Surestore 80fx Optical Drive and Library SCSI-2 Command Reference - Page 180

SCSI-2 Drive Commands Table 2-128 SCSI-2 Drive Command Set Read Defect Data (Group 5) Command (B7H) Defect List Format This field specifies the Defect List Format that is returned. Only the Physical Sector Format (5) is supported. If the Block Format (0) is specified, the defect list will be returned in Physical Sector Format and a CHECK CONDITION status will be returned at the completion of the command with the sense key/ additional sense code set to RECOVERED ERROR/ Defect List Not Available. Allocation Length Specifies the number of bytes that the initiator has allocated for return of this data. A length of 0 indicates that no data will be returned. This condition is not considered an error. The drive will terminate the data - in phase when the allocation length has been transferred or when all defect data has been transferred to the initiator, whichever is less. Read Defect Data Defect List Header Byte 0 1 2 3 4 5 6 7 7 6 5 4 3 2 1 0 Reserved (0) Reserved (0) PList GList Defect List Format Reserved (0) Reserved (0) Defect List Length (MSByte) Defect List Length Defect List Length Defect List Length (LSByte) PList GList A primary List bit of 1 indicates that the Primary List of defects was returned. A Grown List bit of 1 indicates that the Grown List of defects was returned. Chapter 2 2-143