Sony SDX-800V/R manual Medium Common Attributes Attribute Name #Bytes Format

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.

Table 12-11: Medium Common Attributes

ID	Attribute Name	#Bytes	Format
0400h	MEDIUM MANUFACTURER	8	ASCII
0401h	MEDIUM SERIAL NUMBER	32	ASCII
0402h	MEDIUM LENGTH	4	Binary
0403h	MEDIUM WIDTH	4	Binary
0403h	ASSIGNING ORGANIZATION	8	ASCII
0405h	MEDIUM DENSITY CODE	1	Binary
0406h	MEDIUM MANUFACTURE DATE	8	ASCII
0407h	MAM CAPACITY	8	Binary
0408h	MEDIUM TYPE	1	Binary
0409h	MEDIUM TYPE INFORMATION	2	Binary
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 SONY AIT-3Ex drive SDX-800V series Ver.1.1