05 is the repair count, and C4 is the count (both repair and non-repair are counted).
05 No data C4 data is an unrepaired bad track.
C5 is the sector to be repaired at present, that is, it will try to repair when encountering this sector.
C6 is an unrecoverable sector caused by sudden shutdown, usually a physical bad track.
Value relationship of current threshold data
The data of 05c4c5c6a6 are all 0 normally.
Pay attention to the data when it appears.
Just below the threshold. Once the data is greater than the threshold, it exceeds the warning line, which is an early warning state.
At this time, we should pay attention to the relationship between current and threshold.
Currently lower than the threshold means that the hard disk is about to have an abnormal response.
Once it reaches 1, it is the worst count.
In the above situation, please immediately back up important data and prepare for changes.
Because data comes first.
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I hope my answer is helpful to you.
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