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12. Appendix E
SONY AIT-3Ex drive SDX-800V series Ver.1.1
12-7
Table 12-9: Medium USAGE HISTORY attribute format
Bit
Byte
7 6 5 4 3 2 1 0
0
5
(MSB)
CURRENT AMOUNT OF DATA WRITTEN
(LSB)
6
11
(MSB)
The CURRENT WRITE RETRIES COUNT
(LSB)
12
17
(MSB)
CURRENT AMOUNT OF DATA READ
(LSB)
18
23
(MSB)
CURRENT READ RETRIES COUNT
(LSB)
24
29
(MSB)
PREVIOUS AMOUNT OF DATA WRITTEN
(LSB)
30
35
(MSB)
PREVIOUS WRITE RETRIES COUNT
(LSB)
36
41
(MSB)
PREVIOUS AMOUNT OF DATA READ
(LSB)
42
47
(MSB)
PREVIOUS READ RETRIES COUNT
(LSB)
48
53
(MSB)
TOTAL AMOUNT OF DATA WRITTEN
(LSB)
54
59
(MSB)
TOTAL WRITE RETRIES COUNT
(LSB)
60
65
(MSB)
TOTAL AMOUNT OF DATA READ
(LSB)
66
71
(MSB)
TOTAL READ RETRIES COUNT
(LSB)
72
77
(MSB)
LOAD COUNT
(LSB)
78
83
(MSB)
TOTAL CHANGE PARTITION COUNT
(LSB)
84
89
(MSB)
TOTAL PARTITION INITIALIZE COUNT
(LSB)
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.