Magnetic recording device and a method for manufacturing the same

A magnetic recording device, comprising:

• a magnetic recording medium;
• a magnetic head configured to record information on the magnetic recording medium;
• and
• a controller configured to control the magnetic recording medium and the magnetic head, the magnetic head including:
• a coil;
• a first magnetic pole configured to generate a magnetic field according to a recording current supplied to the coil;
• and
• a light emitting section configured to irradiate the magnetic recording medium with a light to locally increase a temperature of the magnetic recording medium,
• the controller being configured to perform a first operation and a second operation,
• in the first operation, the controller being configured to record a first servo position information in a first region of the magnetic recording medium,
• in the second operation, the controller being configured to perform a repair operation if a first condition is not satisfied,
• the first condition including a condition that a recording condition of the first servo position information is within a first range being determined, and
• in the repair operation, the controller being configured to perform an erasing operation of irradiating the first region with the light from the light emitting section to perform a re-recording operation of re-recording the first servo position information in the first region after the erasing operation, wherein
• in the first operation, the controller records the first servo position information in the first region while irradiating the magnetic recording medium with the light,
• an erasing intensity of the light in the erasing operation is higher than a recording intensity of the light in the first operation,
• the light emitting section includes a light source,
• the recording condition for the first servo position information includes a power supplied to the light source in the first operation, and
• the recording conditions for the first servo position information further includes a temperature of the magnetic head in the first operation.