Filter
Top Products
Command Specifications
234 C141-C013
Table 4.40 FORMAT UNIT command defect processing (2/2)
CDB Byte 1 Header
FmtData CmpLst Defect list
format
FOV DPRY
Defect
List
Length
Defect Processing Method
1 0
1 0 0
1 0 1
1 1 >0 1) Alternate block allocation is performed
for defects registered in the previously
existing G List and the defects
described in the D List transferred from
the INIT.
2) The P List is saved, but it is not used in
defect processing.
3) The D List is added to the previously
existing G List
1 1
1 0 0
1 0 1
0
1
0
0
>0 1) Alternate block allocation is performed
for defects described in the D List
transferred from the INIT.
2) The previously existing G List is
erased and it is not used in defect
processing.
3) The D List is registered as the new G
list.
1 1
1 0 0
1 0 1
1 1 >0 1) Alternate block allocation is performed
for defects registered in the P List and
the defects described in the D List
transferred from the INIT.
2) The P List is saved, but it is not used in
defect processing.
3) The previously existing G List is
erased and it is not used in defect
processing.
4) The D List is added to the previously
existing G List.
Note 1) ddd: 0,0,0= D List in the block address format.
1,0,0= D List in the byte distance from the index format.
1,0,1= D List in the physical sector address format.
Note 2) The D List is not transferred from the INIT.
Note 3) If the data block length is changed and the disk media is initialized, the
INIT cannot specify a combination defect processing method.
Note 4) When this combination of defect processing methods is specified, the
HDD performs verification of the data blocks after initialization and
creates the G List. In other combination defect processing methods, the
INIT can clearly specify whether the verification operation is prohibited
or permitted by the DCRT flag of the Format parameter.
(Note 1, Note 3)