b.Move head to reference cylinder
Drives the VCM to position the head at the any cylinder in the data area. The logical initial cylinder is at the outermost circumference (cylinder 0).
c.Seek to specified cylinder
Drives the VCM to position the head to the specified cylinder.
d.Calibration
Senses and stores the thermal offset between heads and the mechanical forces on the actuator, and stores the calibration value.
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