MAGNETIC DISK, METHOD OF TRACK FOLLOWING ON A MAGNETIC DISK, AND METHOD OF WRITING A SERVO PATTERN IN A DEDICATED SERVO LAYER OF A MAGNETIC DISK

摘要

Magnetic disk, method of track following on a magnetic disk, and method of writing a servo pattern in a dedicated servo layer of a magnetic disk. The magnetic disk comprises a servo pattern in a dedicated servo layer of the magnetic disk, the servo pattern having a first burst A and a second burst B arranged to be within one period of a servo sample, each of burst A and burst B comprising DC+ and DC- magnetic bursts; wherein a center of the DC+/DC- bursts of burst B is shifted relative to the DC+/DC- bursts of burst A in a substantially radial direction of the magnetic disk.