- RAW read error rate underlying read errors, high value implies problem with disk body/head
- Throughput performance Read-write throughput performance (the higher the better) * Generally in the artificial Offline s.m.a.r.t. The test will not have a value.
- Spin up time motor, in seconds or milliseconds
- Start/stop count Motor Stop count, high value implies increased failure probability
- Reallocated Sector Count Relocation sector count, indicating how many bad sectors the hardware has found
- * Ideally this value should be 0, if not 0 also not too alarmed, but should be more closely concerned about the value of the change: if there is no change for several weeks, you should be able to rest assured that the use of a longer period of time;
- Seek error rate seek errors, depending on the hard drive manufacturers, some of the new hard disk will have
- * It does not matter if it is not zero, but if it continues to rise, there is a problem with the disk body/head machine.
- Seek time performance seek performance (the higher the better), if the continuous reduction implies that the disk body/head mechanical problems
- power-on Hours Disk power-on time.
- * Refer to the disk manufacturer's MTBF (mean time between failures) for the hard drive to estimate the probability of failure. But it is also possible to exceed the MTBF without failure because the statistics are inaccurate for the individual
- V-spin Retry Count Motor to retry, ideally should be 0, not 0 indicates that the motor or control chip may have problems
- * Of course, in some cases, it may be considered that the value of the non-fault increase, such as insufficient voltage supply.
- recalibration Retries Head Calibration retry, high value implies a problem with the head machine
- Device Power Cycle Count devices switch count, high value implies increased failure probability
- Msoft Read error rate software reads errors, high value implies sector instability
- G-sense Error Rate Acceleration errors
- * Generally exist in the notebook hard disk and enterprise-class hard disk, indicating the number of times the hard drive may cause failure.
- Power-off Retract count Power off head retract count
- Load/unload Cycle Count Head lift count
- Temperature hard drive temperature record, if the display history of the highest temperature is too high, can be considered to imply that the probability of failure increased
- * Specific temperature limit refer to the hard drive manufacturer's technical specifications.
- Reallocation Events count relocate event counts, record the relocation that has been made, and the number of sectors that may be relocated
- * This count contains the unstable sector with the error of the last read operation. This value can be reduced if there is no error in the next read operation of these sectors.
- Current Pending Sector count waits for a reset sector count, which records the number of unstable sectors
- * These sectors are still readable, but if there is an error in the next write operation, the hard disk will result in a sector relocation operation: Mark this sector as bad and use alternate sector overrides, and reposition sector count
- (reallocated Sector Count) increases, this value decreases.
- Uncorrectable Sector count cannot be corrected for sector count, record number of sectors that are positive for errors
- * These sectors are not currently readable, and if there are files using these sectors, the operating system will return read errors, the hard disk will automatically relocate the sector when the next write operation occurs, and the relocation sector count (reallocated Sector count) is increased, and this value is reduced.
- ULTRADMA CRC error Count UDMA communication CRC Error, recording of CRC errors occurred during hard drive communication
- * If this value is not 0 and continues to increase, then the hard disk controller-data cable-the hard drive interface has an error occurred.
- Write (multi-zone) error rate writing errors, depending on the hard drive manufacturers, some of the new hard disk will have
- * Generally not zero also does not matter, but if the continuous rapid rise, suggesting that the disk/head mechanical problems.
- Disk shift body offset, usually caused by a strong impact or fall ...-_-| | | In general, as long as you notice that the red record looks normal, then the hard disk in the future for some time there will be no problem. It seems that some hard disk manufacturers ' disks (like WD) Start with Raw Read error, Seek error and Write error, if so, then this value can be ignored, as long as reallocate sector not, it can be considered a good disk.
Hard Drive Smart Parameter explanation
