Patent ID: 7457065

Claim:
A hard disk drive comprising: logic for sending a request command for a growth program to an optimized hard disk drive on which at least one instruction of the growth program has at least been executed by a processor of the optimized hard disk drive, wherein the growth program contains instructions for performing at least one process of a writing process of writing servo information onto a disk of the hard disk drive, a pretest process that optimizes parameters of servo systems and/or channel systems of the hard disk drive, and a verification test process that verifies whether the optimized parameters provide design values for operation of the hard disk drive; a ROM that stores a basic program that receives the growth program; a MPU for receiving the growth program according to the basic program stored in the ROM, and performing the instructions of the received growth program; and a connector for connecting to a non-optimized hard disk drive that has a disk that has not been optimized and for transmitting the growth program to the non-optimized hard disk drive.