Patent ID: 7237050

Claim:
A multi-channel serial advanced technology attachment (SATA) control system to control data access of a hard disk, comprising: a first SATA control module to control the hard disk to perform data access operation; a first access-grant arbitration unit located in the first SATA control module; a second SATA control module connecting to the first SATA control module to control the hard disk to perform a data access operation; a second access-grant arbitration unit located in the second SATA control module to perform an arbitration process with the first access-grant arbitration unit, and generate a selection signal based on the result of the arbitration process; and a path selection module connecting to the first SATA control module and the second SATA control module, and switching data transmission paths according to the selection signal to allow the first SATA control module or the second SATA control module to control the data access operation of the hard disk, wherein the first SATA control module further includes: a first network transmission unit to provide a data transmission channel to connect to a local area network; a first hard disk control unit to perform the data access operation on the hard disk; a first control chip set unit to control operations of the first network transmission unit and the first hard disk control unit; and a first microprocessor unit to process signals of the first control chip set unit.