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