Disk drive implementing a read channel optimization process

摘要

A disk drive is disclosed comprising a disk including a plurality of tracks, a head actuated over the disk, and control circuitry. The control circuitry is operable to: write a target track including a plurality of data wedges; determine optimization metrics for the data wedges of the plurality of data wedges as the data wedges are read; store the optimization metrics for the data wedges from the target track; and remove a first portion and a second portion of the optimization metrics such that a remaining portion of the optimization metrics remains. Further, the control circuitry is operable to calculate an average optimization metric value for the remaining portion of optimization metrics for use in read channel optimization.