Magnetic disk apparatus

A magnetic disk apparatus comprising:

• a spindle motor to rotate a medium supported by the spindle motor, the medium having an innermost side and an outermost side and containing servo data having positional information and track number information;
• a first driver to drive the spindle motor;
• a head supported by a linear driving section, the head to read the servo data of a particular location on the medium and record data into or reproduce data from the medium;
• a second driver to drive the linear driving section;
• a CPU to receive the servo data of the particular location on the medium, calculate a positional compensation signal from the positional information, and control the linear driving section, movement of the head controlled by servo control in accordance with the positional compensation signal and target positional information;
• a host computer to issue one of reproduction and recording commands;
• and
• a disk controller to receive recording information and the one of reproduction and recording commands and transmit the target positional information to the CPU,
• wherein after data recording or reproduction is stopped, said head is substantially maintained at the current head position servo control is completely stopped after a predetermined time correspondingly stopping the positional compensation signal that controls the position of the head to reduce abrasion of the medium.