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5 Relocated Sector Count
7 Seek Error Rate
9 Power-on Hours Count
10 Spin up Retry Count
194 Power temperatures
195 ECC on the Fly count
197 Current Pending Sector Count
198 Disconnection beyond repair
199 CRC cyclic redundancy check
200 Write Error Count
Note: Different manufacturers and different models have different attribute description, user has no need to know
exact meaning, attribute detection values enough for them
3 Thresho
It is specifie
threshold,
which mea
tribute
values is d
eters; it
does not p
es. Thus,
results test
ws (such as
AIDA32)
4 Attribute Value
Attribute value is the maximum normal value; the general range is from 1 to 253. Typically, the maximum attribute value is
100 (for IBM, Quantum, and Fujitsu) or 253 (for Samsung). Of course, there are some exceptions, for example, some
models produced by Western Digital have two different attribute values, and property value is set 200 when initial
production, but after then it is changed into 100.
5 Worst
Worst value is the largest non-normal value in HDD’s running. It is a value calculates for HDD’s cumulative running, it is
constantly refreshed according to running cycle, and very closed to the threshold. Whether the HDD is normal by
S.M.A.R.T analysis is based on the comparison with threshold. The maximum value appear when new HDD start to use,
which would continue to decrease with the everyday use or error happen. Consequently, larger attribute values
mean
better quality and higher reliability; smaller values
mean more possibility of failure increases.
6 Dates
Actual values of HDD’s detection items, many items are cumulative values.
