−
Sector numbers described in this format are physical sector numbers
which to not apply the "Track skew factor" and the "Cylinder skew
factor."
Table 4.100 Defect descriptor: physical sector address format
Bit
Byte
0
1
2
3
4
5
6
7
C141-C009
Physical sector address format defect descriptor
Table 4.100 lists this description format of the defect descriptor. A
defect descriptor with this format specifies the physical sector number of
the data block which includes the defect on the disk media together with
the cylinder No. and the head (track) No. When specifying multiple
defect descriptors, the cylinder No. must be specified in the top position
and the physical sector No. in the bottom position, with the defect
positions listed in ascending order.
7
6
5
Cylinder No. (MSB)
Cylinder No.
Cylinder No. (LSB)
Head No.
Physical sector No. of defective block (MSB)
Physical sector No. of defective block
Physical sector No. of defective block
Physical sector No. of defective block (LSB)
4.3 Format Commands
4
3
2
1
0
4-153