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== >> IBM (Hitachi) Devices << ==
=== Interpretation of S.M.A.R.T. Attributes ===
|| '''Device Model''' || '''Attributes ID#''' || '''Attributes Name''' || '''Description''' ||
|| || 1 || Raw Read Error Rate || Frequency of errors while reading raw data from a disk. ||
|| || 2 || Throughput Performance || Average efficiency of a hard disk. ||
|| || 3 || Spin Up Time || Time needed by spindle to spin-up. ||
|| || 4 || Start/Stop Count || Number of start/stop cycles of spindle. ||
|| || 5 || Reallocated Sector Count || Quantity of remapped sectors. ||
|| || 6 || Start/Stop Count || Number of start/stop cycles of spindle. ||
|| || 7 || Seek Error Rate || Frequency of errors appearance while positioning. ||
|| || 8 || Seek Time Performance || The average efficiency of operations while positioning. ||
|| || 9 || Power-On Hours Count || Quantity of elapsed hours in the switched-on state. ||
|| || 10 || Spin-up Retry Count || Number of retry attempts, that were needed to reach the operational speed of the spindle. ||
|| || 11 || Calibration Retry Count || Number of attempts to calibrate a drive. ||
|| || 12 || Power Cycle Count || Number of complete power on/off cycles of hard disk. ||
|| || 13 || Soft Read Error Rate || Frequency of program errors appearance while reading data from a disk. ||
|| || 191 || G-Sense Error Rate || Frequency of mistakes as a result of impact loads as detected by a shock sensor(?). ||
|| not all (which?) || 192 || Power-Off Retract Cycle || Number of power-off cycles. ||
|| || 193 || Load/Unload Cycle Count || Number of cycles into Landing Zone position. ||
|| || 194 || HDA Temperature || Temperature of a Hard Disk Assembly. ||
|| '''' || 195 || Hardware ECC Recovered || Frequency of the on the fly errors. ||
|| || 196 || Reallocated Event Count || Number of remap operations. That means replacing a bad sector by one from the spare area. ||
|| || 197 || Current Pending Sector Count || Current number of unstable sectors (waiting for remapping). ||
|| '''' || 198 || Offline Scan Uncorrectable Count || Number of uncorrected errors. ||
|| || 199 || UltraDMA CRC Error Rate || Total number of errors CRC during UltraDMA mode. ||
|| || 200 || Write Error Rate || Number of errors while writing to disk (or) flying height (?) ||
|| || 201 || Soft Read Error Rate || Frequency of program errors appearance while reading data from a disk. ||
|| '''' || 202 || Data Address Mark Errors || Number of Data Address Mark (DAM) errors (or) vendor-specific. ||
|| '''' || 203 || Run Out Cancel || Number of the ECC errors (Maxtor: ECC Errors). ||
|| '''' || 204 || Soft ECC Correction || Quantity of errors corrected by software ECC. ||
|| '''' || 205 || Thermal Asperity Rate (TAR) || Frequency of the thermal asperity errors. ||
|| '''' || 206 || Flying Height || The height of the disk heads above the disk surface. ||
|| '''' || 207 || Spin High Current || Amount of high current used to spin up the drive. ||
|| '''' || 208 || Spin Buzz || Number of buzz routines to spin up the drive. ||
|| '''' || 209 || Offline Seek Performance || Drive's seek performance during offline operations. (Relation to Seek Time Performance - #8?) ||
|| '''' || 220 || Disk Shift || Shift of disk is possible as a result of strong shock loading in the store, as a result of it's falling or for other reasons (sometimes: Temperature) ||
|| '''' || 221 || G-Sense Error Rate || Frequency of mistakes as a result of impact loads as detected by a shock sensor(?). ||
|| '''' || 222 || Loaded Hours || Number of hours in general operational state. ||
|| '''' || 223 || Load/Unload Retry Count || Loading on drive caused by numerous recurrences of operations, like reading, recording, positioning of heads, etc. ||
|| '''' || 224 || Load Friction || Load on drive caused by friction in mechanical parts of the store. ||
|| '''' || 225 || Load/Unload Cycle Count || Number of cycles into Landing Zone position. ||
|| '''' || 226 || Load-in Time || General time of loading for drive. ||
|| '''' || 227 || Torque Amplification Count || Quantity efforts of the rotating moment of a drive. ||
|| '''' || 228 || Power-Off Retract Cycle || Number of power-off cycles. ||
|| '''' || 230 || GMR Head Amplitude || Amplitude of heads trembling (GMR-head) in running mode. ||
|| '''' || 231 || Temperature || Temperature of a drive. ||
|| '''' || 240 || Head Flying Hours || Time while head is positioning. ||
|| '''' || 250 || Read Error Retry Rate || Number of errors while reading from a disk. ||
'''References:''' http://www.ariolic.com/activesmart/smart-attributes/