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Magnetic head control capable of avoidance media bumps during seeking process
Magnetic head control capable of avoidance media bumps during seeking process
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机译:磁头控制能够避免寻道过程中的介质碰撞
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摘要
According to one embodiment, a magnetic disk drive selects in command evaluation in reordering processing, a command accessible in a shortest time. The device determines whether media bumps which influence a dynamic flying height (DFH) control exist in a seek section between completion of a previous command and start of a selected command or not, calculates a latency necessary for avoidance of the media bumps if it is determined by the determination that the media bumps which influence the DFH control exist, and selects the command accessible in the shortest time including the time obtained by summing the latency calculated by the calculation as the command to be next processed.
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