| 摘要 |
According to one embodiment, a magnetic storage apparatus configured to write data to and read data from a magnetic medium with a head includes a setting module, a write module, a read module, and a quality measurement module. The setting module sets a plurality of sections divided in the track direction of the magnetic medium and a predetermined reference path along the track direction, and also sets at least one offset for each of the sections such that the offset is different between adjacent sections. The offset is the position of the head with respect to the reference path. The write module writes a first data pattern to the offset set by the setting module and writes a second data pattern to the reference path a predetermined number of times. The read module reads the first data pattern written by the write module. The quality measurement module measures the quality of the first data pattern read by the read module.
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