Power On Hours Count
||This attribute shows drive aging, i.e. how long the drive
is power on. The raw value of this attribute shows amount of hours
of the power - on state.
drive's start/stop cycles.
|Reallocated Sector Count
amount of remapped sectors. If the sector became bad for some
reason then the drive replaces it with a spare sector from a
special spare area. The value of 100 means that no sectors were
remapped. The raw value of this attribute shows exact amount of
|Spin Up Time
value of this attribute indicates average time to spin up the drive
|Spin Retry Count
retry of drive spindle spin start attempts. The raw value indicates
amount of retries.
|Power Cycle Count
disk power cycles. The raw value indicates amount of power
|Raw Read Error Rate
depends of read errors, and disk surface condition and indicates a
read retries rate. Lower values indicate that there is a problem
with either disk surface or read/write heads.
|Write Error Count
value indicates amount of write errors.
|Seek Error Rate
rate of seek errors. This attribute indicates a state of head
positioning mechanism. Lower values shows that there is a problem
with head positioning.
|Seek Time Performance
drive contains a dedicated thermal sensor then this attribute shows
a drive temperature. Active SMART supports drives with
throughput performance of the drive.
|Off-line Scan Uncorrectable Sector Count
error sectors detected during the last off-line scan.
|Current Pending Sector Count
pending sectors. If the sector issues and error during read or
write the drive marks it as pending for a certain time before
replacing this error sector with a spare one.