Hard disk drive apparatus, method to compensate repeatable run out of hard disk drive apparatus, and computer-readable recording media recording the method

A computer-readable recording medium having embodied therein a computer program to execute a method, wherein the method comprises:

• receiving a write or read command to respectively write or read data with respect to a disk having an inner diameter (ID) area, a middle diameter (MD) area, and an outer diameter (OD) area which are preset;
• determining a present position of a magnetic head and a position where the magnetic head writes or reads data;
• stopping an operation of at least one of the RRO compensators for RRO components of particular frequencies when the present position of the magnetic head is the ID area and the position where the magnetic head writes or reads the data is the MD area or OD area of the disk;
• and
• performing data writing or reading by performing seeking and settling of the magnetic head.

A hard disk drive apparatus comprising:

• a disk having a inner diameter (ID) area, a middle diameter (MD) area, and an outer diameter (OD) area which are preset;
• a magnetic head to write or read data on the disk;
• and
• a controller to receive a data write or read command, to determine a present position of the magnetic head and a position where the magnetic head writes or reads the data, to stop an operation of RRO compensators for RRO components of particular frequencies when the present position of the magnetic head is the ID area of the disk and the position where the magnetic head writes or reads the data is the MD area or the OD area of the disk, and to perform the data writing or reading by allowing the magnetic head to seek and settle.

A disk drive apparatus, comprising:

• at least one disk having an inner diameter area and an outer diameter area;
• a head to at least one of read or write data on the at least one disk;
• and
• a repeatable run out (RRO) compensator unit comprising:
• a plurality of RRO compensators to compensate a plurality of RRO components, respectively;
• and
• a controller to control the plurality of RRO compensators by placing or maintaining at least one of the plurality of RRO compensators in a non-compensating mode when a position of the head is proximate to the inner diameter area of the disk and is set to seek data in the outer diameter area of the disk.