*2 Attribute ID
The attribute ID is defined as follows:
| Attribute ID (Dec) | Description |
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| 0 | (Indicates unused attribute data) |
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| 1 | Read error rate |
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| 2 | Throughput performance |
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| 3 | Spin up time |
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| 4 | Number of times the spindle motor is activated |
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| 5 | Number of alternative sectors |
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| 6 | Read channel margin (Not supported) |
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| 7 | Seek error rate |
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| 8 | Seek time performance |
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| 9 | |
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| 10 | Number of retries made to activate the spindle motor |
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| 11 | Number of retries to calibration |
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| 12 | Number of turn on/off times |
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| 13 to 198 | Reserved |
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| 199 | Ultra ATA CRC Error Rate |
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| 200 | Write error rate |
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| 201 to 255 | (Vendor unique) |
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*3 Status flag |
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| Bit | Description |
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| 0 | If this bit is set to 1, it indicates the attribute is guaranteed for |
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| normal operation when an attribute value exceeds the threshold. |
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| 1 | If this bit is set to 1 (0), it indicates the attribute is updated only |
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| by |
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| 2 | If this bit is set to 1, it indicates a performance attribute. |
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| 3 | If this bit is set to 1, it indicates an |
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| 4 | If this bit is set to 1, it indicates an event count attribute. |
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| 5 | If this bit is set to 1, it indicates the attribute shall be collected |
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| and saved even if the failure prediction feature is disabled. |
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| 6 to 15 | Reserved bits |
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5 - 56 |
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