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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. | |
<unknown> | 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). | |
<unknown> | 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. | |
<unknown> | 202 | Data Address Mark Errors | Number of Data Address Mark (DAM) errors (or) vendor-specific. |
<unknown> | 203 | Run Out Cancel | Number of the ECC errors (Maxtor: ECC Errors). |
<unknown> | 204 | Soft ECC Correction | Quantity of errors corrected by software ECC. |
<unknown> | 205 | Thermal Asperity Rate (TAR) | Frequency of the thermal asperity errors. |
<unknown> | 206 | Flying Height | The height of the disk heads above the disk surface. |
<unknown> | 207 | Spin High Current | Amount of high current used to spin up the drive. |
<unknown> | 208 | Spin Buzz | Number of buzz routines to spin up the drive. |
<unknown> | 209 | Offline Seek Performance | Drive's seek performance during offline operations. (Relation to Seek Time Performance - #8?) |
<unknown> | 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) |
<unknown> | 221 | G-Sense Error Rate | Frequency of mistakes as a result of impact loads as detected by a shock sensor(?). |
<unknown> | 222 | Loaded Hours | Number of hours in general operational state. |
<unknown> | 223 | Load/Unload Retry Count | Loading on drive caused by numerous recurrences of operations, like reading, recording, positioning of heads, etc. |
<unknown> | 224 | Load Friction | Load on drive caused by friction in mechanical parts of the store. |
<unknown> | 225 | Load/Unload Cycle Count | Number of cycles into Landing Zone position. |
<unknown> | 226 | Load-in Time | General time of loading for drive. |
<unknown> | 227 | Torque Amplification Count | Quantity efforts of the rotating moment of a drive. |
<unknown> | 228 | Power-Off Retract Cycle | Number of power-off cycles. |
<unknown> | 230 | GMR Head Amplitude | Amplitude of heads trembling (GMR-head) in running mode. |
<unknown> | 231 | Temperature | Temperature of a drive. |
<unknown> | 240 | Head Flying Hours | Time while head is positioning. |
<unknown> | 250 | Read Error Retry Rate | Number of errors while reading from a disk. |
References: http://www.ariolic.com/activesmart/smart-attributes/
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