Providing pre-determined servo position correction values for use during disk drive initialization

A disk drive comprising:

• a moveable head;
• a disk having a plurality of tracks;
• and
• a servo controller to control track following operations with the moveable head, a substantial majority of the tracks having a plurality of servo sectors utilized in track following operations, the servo controller implementing a program during power-up to:
• calculate servo position correction values using a set of servo position correction coefficients that have been pre-selected for the disk drive based upon a class of disk drives, the set of servo position correction coefficients being coded into the program;
• store the servo position correction values in a pre-determined servo position correction look-up table in memory;
• and
• utilize the pre-determined servo position correction look-up table to track follow on a reserved track of the disk.

A disk drive, comprising:

• a means for calculating and storing a pre-determined look up table in response to a set of predetermined coefficients for a class of disk drives, the pre-determined look up table comprising servo position correction values;
• a means for track following on a reserved track using the pre-determined look up table;
• and
• a means for creating an off-track gain profile for the disk drive and for creating a calibrated look up table in response to the off-track gain profile, the calibrated look up table comprising calibrated servo position correction values.