What do "current", "worse" and "threshold" reallocated sectors mean in harddrive SMART info?

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What do the current/worse values mean in particular, and what is the threshold?

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Source S.M.A.R.T. Atttribute

Explanation:

  • Attributes describes the measured value of hard drive controller operations.

  • The values of an attribute are: current, worst, threshold and raw.

  • Values are normalized to a vendor specific scale. Scales could be ranged up to 100, 200 or 253.

  • Often higher values are better than lower values.

  • The threshold marks the value at which the hard drive could fail.

  • The worst value is the baddest value seen for this drive at this attribute.

  • The raw value is a vendor coded count that give, after decoding, the normal values like current, worst and threshold.

Source S.M.A.R.T Value Interpretation


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laurent
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laurent

Updated on September 18, 2022

Comments

  • laurent
    laurent over 1 year

    CrystalDiskInfo reports the following warning:

    Number of reallocated sectors:
    Current: 96
    Worse: 96
    Threshold: 10
    Raw value: 00000000000A
    

    But I have no idea how to read these numbers. What do the current/worse values mean in particular, and what is the threshold?

    Edit

    Please see below the details of the drive:

    enter image description here

  • laurent
    laurent over 7 years
    Thank you, the part I don't understand though is what value I should look at to know the current status. Since 96/96/10 all are hardcoded values, how do I know how bad the problem is? Should I look at the raw value? Does it mean I have 10 (0A) reallocated sectors out of the threshold 10?
  • DavidPostill
    DavidPostill over 7 years
    @this.lau_ The interpretation of the numbers depends on the disk manufacturer (and how they implemented smart on the disk). That's why I said in a comment on the question "Please edit and provide the full smart information and the make/model of the drive."
  • DavidPostill
    DavidPostill over 7 years
    Your drive could fail at any moment or it could last a few more months it is impossible to tell. You should perform a backup now. Keep an eye on this value - if it keeps on increasing it means failure is imminent.