Sony SDX-800V/R Device VENDOR/SERIAL Number attribute format Bit Byte, Vendor Identification

12. Appendix E

0007h INITIALIZATION COUNT: Indicates the number of times that a device server has logically formatted the medium. This figure is cumulative over the life of the medium and shall never be reset.

020Ah, 020Bh, 020Ch, 020Dh DEVICE VENDOR/SERIAL NUMBER AT LAST LOAD, DEVICE VENDOR/SERIAL NUMBERAT LOAD – 1, DEVICE VENDOR/SERIAL NUMBER AT LOAD – 2 AND DEVICE VENDOR/SERIAL NUMBER AT LOAD –3:

Give a rolling history of the last four device servers in which the medium has been loaded. The format of the attributes is shown in table 12-8

Table 12-8: DEVICE VENDOR/SERIAL NUMBER attribute format

Bit 7 6 5 4 3 2 1 0

Byte

0(MSB)

7 VENDOR IDENTIFICATION

(LSB)

8(MSB)

	PRODUCT SERIAL NUMBER
39
	(LSB)

The VENDOR IDENTIFICATION field shall be the same value returned in the standard INQUIRY data.

The PRODUCT SERIAL NUMBER field contains a vendor unique serial number. If the product serial number is not available, the PRODUCT SERIAL NUMBER field shall contain ASCII spaces (20h).

0220h TOTAL MBYTES WRITTEN IN MEDIUM LIFE and 0221h TOTAL MBYTES READ IN MEDIUM LIFE: Indicate the total number of data bytes that are transferred to or from the medium surface, after any data compression has been applied, over the entire medium life. These values are cumulative and shall never be reset. These values are expressed in increments of 1,048,576 bytes (i.e. a value of one means 1,048,576 bytes, two means2, 097,152 bytes, etc).

0222h TOTAL MBYTES WRITTEN IN CURRENT/LAST LOAD AND 0223h TOTAL MBYTES READ IN CURRENT/LAST LOAD: Indicate the total number of data bytes that are transferred to or from the medium surface, after any data compression has been applied, during the current load if the medium is currently loaded, or the last load if the medium is currently unloaded. The device server should reset these attributes to zero when the medium is loaded. These values are expressed in increments of 1,048,576 bytes

(I.e. a value of one means 1,048,576 bytes, two means 2,097,152 bytes, etc).

0340h MEDIUM USAGE HISTORY: Provides statistical counters (table 12-9) for the entire medium. The value in each field is the sum for all partitions. If a field is not used it should be set to zero.

12-6 SONY AIT-3Ex drive SDX-800V series Ver.1.1