Multi-sensor media defect scan

摘要

Apparatus and method for detecting media defects using a multi-sensor transducer. In some embodiments, a first pattern is written to a first track on a rotatable storage media and a second pattern is written to a second track on the media. A first read sensor of a multi-sensor transducer senses the first pattern from the first track and a second read sensor of the multi-sensor transducer concurrently senses the second pattern from the second track. At least one storage media defect is detected responsive to the sensed first and second patterns.

主权项

1. A method comprising:
writing a first pattern to a first track on a rotatable storage media and a second pattern to a second track on the media using a write element positioned at a first clearance distance with respect to the rotatable storage media; concurrently using a first read sensor of a multi-sensor transducer to sense the first pattern from the first track and a second read sensor of the multi-sensor transducer to sense the second pattern from the second track at a second clearance distance different from the first clearance distance; and detecting at least one storage media defect responsive to the sensed first and second patterns.