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5.3 Host Commands
C141-E088-03EN 5-63
• Data format version number
The data format version number indicates the version number of the data
format of the device attribute values or insurance failure thresholds. The data
format version numbers of the device attribute values and insurance failure
thresholds are the same. When a data format is changed, the data format
version numbers are updated.
• Attribute ID
The attribute ID is defined as follows:
Attribute ID
Attribute name
0
(Indicates unused attribute data.)
1
Read error rate
2
Throughput performance
3
Spin up time
4
Start/stop count
5
Re-allocated sector count
7
Seek error rate
8
Seek time performance
9
Power-on time
10
Number of retries made to activate the spindle motor
12
Number of power-on-power-off times
13 to 198
(Reserved)
199
Ultra ATA CRC error rate
200
Write error rate
201 to 255
(Unique to vendor)
• Status Flag
Bit
Meaning
0
If this bit 1, it indicates that if the attribute exceeds the threshold,
it is the attribute covered by the drive warranty.
1
If this bit is 1 (0), it indicates the attribute only updated by an on-
line test (off-line test).
2
If this bit 1, it indicates the attribute that represents performance.
3
If this bit 1, it indicates the attribute that represents an error rate.
4
If this bit 1, it indicates the attribute that represents the number of
occurrences.
5
If this bit 1, it indicates the attribute that can be collected/saved
even if the drive fault prediction function is disabled.
6 to 15
Reserve bit