Abstract: A data storage device and method of controlling the same. An automatic data update method of a data storage system, includes: counting a number of times a write mode is executed in tracks adjacent to each track of a storage medium; reading data stored in one of the tracks of the storage medium when the number of times the write mode is executed in any tracks adjacent to the one of the tracks exceeds a specified threshold value; and re-writing the read data to the one of the tracks.

Abstract: For protecting data within a data storage system, such as a hard disk drive, security enable mode is entered. In that mode, initialization data is moved from a first area of a disk to a second area of the disk with a location of the second area being randomly generated. The initialization data is then erased from the first area. Also, a first cipher for firmware and a second cipher for a disk are both changed into a randomly generated value. Later, access to the initialization data from the second area is granted in the security enable mode if the first and second ciphers are the same.

Abstract: For protecting data during transmission between a host device and a data storage device, the host device encrypts command-related information and sends the encrypted command-related information to the data storage device. The data storage device decrypts the encrypted command-related information, interprets the decrypted command-related information to generate interpreted commands, and executes the interpreted commands.

Abstract: For generating a random number in a disk drive, a seed is generated from a respective sector number for each of at least one sector of the disk drive. The random number is calculated using the seed. The seed that is generated with enhanced unpredictability and complexity is used to generate the random number for secure data cryptography within the disk drive.

Abstract: A method of and apparatus for processing data according to data types. The data processing method is performed by a slave processor and a main processor, wherein the slave processor stores and reads data and the main processor is connected to the slave processor to process the data.