Optical Drive and Library SCSI-2 Command Reference

SCSI-2 Drive Command Set
Reassign Blocks Command (07H)
Chapter 2 2-19
SCSI-2 Drive Commands
Reassign Blocks Command (07H)
This command reassigns defective sectors. A defect list containing the
Logical Block Addresses to be reassigned is transferred to the drive.
Data in the defective sector is moved to the replacement sector.
Reassign Blocks Command Defect List
The Reassign Blocks command defect list is made up of a 4-byte Defect
List Header and zero or more 4-byte Defect Descriptor blocks.
Table 2-14 Reassign Blocks Command CDB
Byte 7 6 5 4 3 2 1 0
0 Operation Code (07H)
1 Logical Unit Number
(0)
Reserved (0)
2 Reserved (0)
3 Reserved (0)
4 Reserved (0)
5 Reserved (0) Flag Link
Table 2-15 Reassign Blocks Command Defect List Header
Byte 7 6 5 4 3 2 1 0
0 Reserved (0)
1 Reserved (0)
2 Defect List Length (MSByte)
3 Defect List Length (LSByte)