Data storage device aborting write operation based on accumulated track squeeze metric for adjacent data track

A data storage device comprising:

• a disk comprising a plurality of data tracks, including consecutive data tracks N−1 and N;
• a head actuated over the disk;
• and
• control circuitry configured to:
• first write to data track N−1 using a first position error signal (PES) representing a position of the head relative to the disk;
• second write to data track N using a second PES;
• generate a track squeeze metric for data track N−1 based on at least the first PES of the first write and the second PES of the second write;
• accumulate the track squeeze metric for data track N−1 during the second write;
• and
• abort the second write when the accumulated track squeeze metric for data track N−1 exceeds a first threshold.

A data storage device comprising:

• a disk comprising a plurality of data tracks, including consecutive data tracks N−1 and N;
• a head actuated over the disk;
• a means for first writing to data track N using a first position error signal (PES) representing a position of the head relative to the data tracks;
• a means for generating a track squeeze metric for data track N−1 based on at least the first PES of the first writing;
• a means for accumulating the track squeeze metric for data track N−1 during the first writing;
• a means for storing in a non-volatile memory the accumulated track squeeze metric for data track N−1 generated during the first writing;
• and
• a means for reading the accumulated track squeeze metric from the non-volatile memory and updating the accumulated track squeeze metric during a second writing to data track N.