Format Unit Defect Descriptor-Block Format; From Index Format - Maxtor ATLAS 10K III Product Manual

SCSI Description
Each descriptor specifies a 4-byte defective sector address of the sector that contains
the defect as shown in Table 5-17.
T a b l e 5 - 1 7 FORMAT UNIT Defect Descriptor-Block Format
$ K V
$ [ V G
0 - 3
The Physical Sector defect descriptor specifies the location of a defect that is the length
of a sector. The Bytes From Index defect descriptor specifies the location of a defect
that is no more than eight bytes long.
Each descriptor is comprised of the bytes shown in Table 5-18. The Cylinder Number
of Defect is the most significant part of the address, and the Defective Sector Number
or Defect Bytes From Index is the least significant part of the address. A value of
FFFFFFFFh in bytes 4 to 7 is ignored
T a b l e 5 - 1 8 FORMAT UNIT Defect Descriptor- Physical Sector and Bytes
B i t
$ [ V G
0 - 2
3
4 - 7
5-18 Maxtor Atlas 10K III
  

From Index Format

  
Cylinder Number of Defect
Defective Sector Number
 
Defective Block Address
 
Head Number of Defect
or
Defect Bytes from Index