5.3 Host Commands
Bit | Meaning |
3If this bit 1, it indicates the attribute that represents an error rate.
4If this bit 1, it indicates the attribute that represents the number of occurrences.
5If 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 |
•Current attribute value
The current attribute value is the normalized raw attribute data. The value varies between 01h and 64h. The closer the value gets to 01h, the higher the possibility of a failure. The device compares the attribute values with thresholds. When the attribute values are larger than the thresholds, the device is operating normally.
•Attribute value for the worst case so far
•
•
This is the worst attribute value among the attribute values collected to date. This value indicates the state nearest to a failure so far.
Raw attribute value
Raw attributes data is retained.
Bits 0 to 6: Indicates the situation of
Bit 7: If this bit is 1, it indicates that the automatic
Status Byte | Meaning |
0 | |
|
|
2 |
4
5
6
•Self test execution status
Bits 0 to 3: Indicates the rest of
Bits 4 to 7: Indicates the