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5.3 Host Commands
C141-E262 5-61
• Status Flag
Bit Meaning
0 If this bit is 1, it indicates normal operations are assured with the
attribute when the attribute value exceeds the threshold value.
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 SMART is disabled.
6 to 15 Reserve bit
• Current attribute value
It indicates the normalized value of the original attribute value. The value
deviates in a range of 01h to 64h (range of 01h to C8h for the Ultra ATA CRC
error rate and communication error rate). It indicates that the closer the value is
to 01h, the higher the possibility of a failure. The host compares the attribute
value with the threshold value. If the attribute value is larger than the threshold
value, the drive is determined to be normal.
• Attribute value for the worst case so far
This is the worst attribute value among the attribute values collected to data. This
value indicates the state nearest to a failure so far.
• Raw attribute value
Raw attributes data is retained.
• Off-line data collection status