Sony SDX-900V Product Specifications page 192

12. Appendix E
COUNT fields are as defined for MEDIUM USAGE HISTORY except that they refer to the partition identified by the
CDB PARTITION NUMBER field rather than the whole medium.
The CHANGE PARTITION COUNT field indicates the number of times that switches to the partition specified by the
PARTITION NUMBER field in the CDB have been performed on the medium. This count accumulates over the life of
the medium but it is reset to zero after a medium format.
The PARTITION INITIALIZE COUNT field indicates the number of times that the partition specified by the
PARTITION NUMBER field in the CDB has been initialized. This count accumulates over the life of the medium but
it is reset to zero after a medium format.
Standard Medium Type Attributes
Medium type attributes (table 12-11) are hard coded into the medium auxiliary memory at manufacture time. All
supported medium type attribute shall have a status of read only.
ID Attribute Name
0400h MEDIUM MANUFACTURER
0401h MEDIUM SERIAL NUMBER
0402h MEDIUM LENGTH
0403h MEDIUM WIDTH
0403h ASSIGNING ORGANIZATION
0405h MEDIUM DENSITY CODE
0406h MEDIUM MANUFACTURE DATE
0407h MAM CAPACITY
0408h MEDIUM TYPE
0409h MEDIUM TYPE INFORMATION
040Ah – 07FFh Reserved
The MEDIUM MANUFACTURER: Contains eight bytes of ACSII data identifying the vendor of the media.
Note: It is intended that the MEDIUM MANUFACTURER attribute provide a unique vendor identification of the
manufacturer of the media. In the absence of a formal registration procedure, T10 maintains a list of known vendor
identification codes in use. Vendors are requested to voluntarily submit their identification codes to T10 to prevent
duplication of codes.
The MEDIUM LENGTH attribute specifies the length of the medium in meters. A value of 00h specifies that the
length of the medium is undefined.
The MEDIUM WIDTH attribute specifies the width of the medium supported by this density. This field has units of
tenths of millimeters. The value in this field shall be rounded up if the fractional value of the actual value is greater
than or equal to 0.5. The MEDIUM WIDTH field may vary for a given density depending on the mounted medium. A
value of 00h specifies the width of the medium is undefined.
The ASSIGNING ORGANIZATION attribute identifies the organization responsible for the specifications defining the
values in the MEDIUM DENSITY CODE attribute. The ASSIGNING ORGANIZATION field should contain a value
listed in the vendor identification list.
The MEDIUM SERIAL NUMBER identifies the manufacturer's serial number for the medium.
The MEDIUM DENSITY CODE is the same numeric DENSITY CODE as reported in the SCSI Mode Block
Descriptor.
12-10
Table 12-11: Medium Common Attributes
#Bytes Format
8 ASCII
32 ASCII
4 Binary
4 Binary
8 ASCII
1 Binary
8 ASCII
8 Binary
1 Binary
2 Binary
SONY AIT-4 drive SDX-900V series Ver.2.1