|
发表于 2007-10-27 10:22:11
|
显示全部楼层
还是觉国外的解释相对要好些:
参考如下:
Hard Disk S.M.A.R.T.
S.M.A.R.T. - Self-Monitoring, Analysis, and Reporting Technology.
S.M.A.R.T. is a reliability prediction technology that anticipate the failure of a disc drive with sufficient notice to allow a user to back up data prior to a drive's failure. This technology is applied for both IDE and SCSI drives.
Drive architectures are not all the same, S.M.A.R.T. would therefore carries different set of attributes and thresholds for different drive model. Common attributes that degrade over time are identified as:
head flying height
seek error rate
re-allocated sector count
spin-up time
seek time
spin retry count
calibration retry count
data throughput
However, not all failures are predictable. For example a power surge that damages hard disk electronics is an unpredictable failure. Mechanical failures are usually gradual and predictable, and account for 60 percent of drive failure.
The S.M.A.R.T. system technology of attributes and thresholds is similar in IDE and SCSI with only difference in their reporting manner.
至于 清除smart表 复位smart表 应该是硬盘出现坏道情况下需要进行的操作,硬盘需要数据的话不要轻易进行这项操作。
smart表其中的 Reallocated sector count 纪录数据相对等同于硬盘的G-list 也就是通常说的G表
[ 本帖最后由 烟台硬盘数据 于 2007-10-27 10:28 编辑 ] |
|