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Bit
7
Byte
0
(MSB)
5
6
(MSB)
11
12
(MSB)
17
18
(MSB)
23
24
(MSB)
29
30
(MSB)
35
36
(MSB)
41
42
(MSB)
47
48
(MSB)
53
54
(MSB)
59
60
(MSB)
65
66
(MSB)
71
72
(MSB)
77
78
(MSB)
83
84
(MSB)
89
The CURRENT AMOUNT OF DATA WRITTEN field indicates the amount of data physically written to the medium
during this load of the medium. This value is expressed in increments of 1048576 bytes (e.g., a Value of one means
1048576 bytes, two means 2097152 bytes, etc).
The CURRENT WRITE RETRY COUNT field indicates the total number of write retry was performed during this load
of the medium. The exact definition of the error counters is not part of this standard. This counter should not be used
to compare products because the products may define errors differently.
SONY AIT-4 drive SDX-900V series Ver.2.1
Table 12-9: Medium USAGE HISTORY attribute format
6
5
4
CURRENT AMOUNT OF DATA WRITTEN
The CURRENT WRITE RETRIES COUNT
CURRENT AMOUNT OF DATA READ
CURRENT READ RETRIES COUNT
PREVIOUS AMOUNT OF DATA WRITTEN
PREVIOUS WRITE RETRIES COUNT
PREVIOUS AMOUNT OF DATA READ
PREVIOUS READ RETRIES COUNT
TOTAL AMOUNT OF DATA WRITTEN
TOTAL WRITE RETRIES COUNT
TOTAL AMOUNT OF DATA READ
TOTAL READ RETRIES COUNT
LOAD COUNT
TOTAL CHANGE PARTITION COUNT
TOTAL PARTITION INITIALIZE COUNT
3
2
1
12. Appendix E
0
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
12-7
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