| 摘要 |
PROBLEM TO BE SOLVED: To realize a drive method for a vibration proof hard disk driver inexpensively detecting external vibration without shock sensor. SOLUTION: A detecting track containing a read exclusive sector is provided on a hard disk. At a data write-in time (S1), information is divided into n pieces of data groups (S2), and at a write-in time, first of all, sector information in the detecting track is read (S3). At this time, when on-track isn't performed due to an effect of disturbance vibration (S4), the re-try is performed till the number of prescribed times, and the matter that the disturbance vibration is eliminated is awaited. When the disturbance vibration is eliminated, it enters a write-in mode (S5), and the division data are written (S6-S8). When the sector information of the detecting track isn't read, the relevant sector is invalidated (S11), and inspective information of a next sector is read.
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