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How can current pending and uncorrectable sector raw value decrease?


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#1 signofzeta

signofzeta

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Posted 05 October 2014 - 02:10 PM

I have this hard drive that is on its last legs, and I am monitoring the reallocated sectors, current pending sectors, and uncorrectable sector counts.  I basically want to use it, well not really put important stuff in it, until the hard drive officially can't boot windows anymore.

 

I noticed something.  Both the current pending sector count and reallocated sector count raw values decreased by 1, while the reallocated sector count remained the same.  How is that even possible?  I thought bad sectors are permanent?

 

There was an earlier time when uncorrectable and current pending sectors both decreased by 2, but the reallocated sectors increased by 2, but even in that case, shouldn't the current pending sectors be the only attribute to decrease by 2?

 

Another question, why is the current pending sector count and uncorrectable sector count the same?  If one increases or decreases by a certain amount, the other increases or decreases by the same amount.  The raw values for both are always equal for me, and I don't know why, and it doesn't make sense to me.

 

I basically want an explaination as to how the current pending sector count and uncorrectable sector count can decrease like that.



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