发明申请
US20120014013A1 DISK DRIVE WITH VARIABLE INCREMENTED COUNTING OF WRITES TO THE DATA TRACKS FOR MINIMIZING THE EFFECT OF FAR TRACK ERASURE 有权
磁盘驱动器,可变数据写入数据跟踪,以最小化雷达跟踪效应的影响

DISK DRIVE WITH VARIABLE INCREMENTED COUNTING OF WRITES TO THE DATA TRACKS FOR MINIMIZING THE EFFECT OF FAR TRACK ERASURE
摘要:
A hard disk drive (HDD) minimizes the effects of far track erasure (FTE) by counting the number of writes to the data tracks and incrementing counters based on the known effect of FTE on each track. The extent of the FTE effect is determined for each track within a range of tracks of the track being written, and based on 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 the data is read from that track and rewritten, preferably to the same track.
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