Interface
∙Check sum
Two’s complement of the lower byte, obtained by adding
∙Insurance failure threshold
The limit of a varying attribute value. The host compares the attribute values with the thresholds to identify a failure.
If an unrecoverable error is detected during execution of a command received by the device from the host computer, the device saves the SMART error log on the disk medium.
The host computer can issue the SMART Read Log Sector
Table 5.10 SMART error log data format (1/2)
Byte |
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| Item | |
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00 | Error log version number |
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01 | Error log index |
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02 | Error log 1 |
| Command Data 1 |
| Device Control register |
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03 |
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| Features register |
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04 |
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| Sector Count register |
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05 |
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| Sector Number register |
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06 |
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| Cylinder Low register |
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07 |
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| Cylinder High register |
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08 |
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| Device/Head register |
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09 |
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| Command register |
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0A to 0D |
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| Elapsed time [ms] from the |
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| point when the power is turned |
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| on until command reception |
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0E to 3D |
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| Command Data 2 to 5 | (The format of each type of | |
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| command data is the same as |
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| that of byte 02 to 0D.) |
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3E |
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| Error data |
| Reserved |
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3F |
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| Error register |
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40 |
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| Sector Count register |
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41 |
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| Sector Number register |
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42 |
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| Cylinder Low register |
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43 |
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| Cylinder High register |
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