| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a disk drive with variable incremented counting means of writing to data tracks for minimizing an effect of far track erasure. <P>SOLUTION: A hard disk drive minimizes an effect of far track erasure (FTE) by counting the number of writing to data tracks and incrementing counters based on a known effect of the FTE on each track. The extent of the FTE effect is determined for each track within a predetermined range of tracks of the track being written. On the basis of the relative FTE effect for all the tracks in the range, a count increment (CI) is determined for each track within the range. A counter is maintained for each track. For every writing to a track, a count for each track within a range of the track being written is increased by the CI value associated with the track number within the range. When the count value for a track reaches a predetermined threshold value, the data is read from the track and rewritten. <P>COPYRIGHT: (C)2012,JPO&INPIT |
