SMART Attributes

Here you can find information about S.M.A.R.T. attributes used by different hard drive manufacturers and their meaning.

What is the S.M.A.R.T. attribute?

The S.M.A.R.T. attributes are specific properties (parameters) of various parts of a hard drive. S.M.A.R.T. uses attributes to monitor the disk condition and to analyze its reliability (e.g.: the “Temperature” attribute indicates the temperature of the hard disk, the “Power-On Hours” attribute indicates the count of hours in a power-on state, etc.) Various manufacturers may use different sets of attributes.

Hardware ECC Recovered
GMR Head Amplitude
Torque Amplification Count
Load-in Time
Load Friction
Load/Unload Retry Count
Loaded Hours
Disk Shift
Write Error Rate (Multi Zone Error Rate)
UltraDMA CRC Error Count
Uncorrectable Sector Count
SSD Program Fail Count
Current Pending Sector Count
Reallocation Event Count
Hard Drive Temperature
Load/Unload Cycle Count
Power-Off Retract Count
G-Sense Error Rate
Soft Read Error Rate
Device Power Cycle Count
Recalibration Retries
Spin Retry Count
Power-On Hours
Seek Time Performance
Seek Error Rate
Read Channel Margin
Reallocated Sectors Count
Start/Stop Count
Spin Up Time
Throughput Performance
Raw Read Error Rate
Available Reserved Space