A method of determining a physical location of a hard drive includes the steps of: executing commands to obtain generic device names of expanders, addresses of hard drives connected to the expanders, slot numbers corresponding to the addresses, logical device names of the hard drives, the address of the hard drives; establishing correspondence information by using the address to link the generic device name of the expander to the logical device name of the hard drive connected to the expander, and to the slot number; and determining, according to the correspondence information, the generic device name of the expander to which a hard drive is connected and the slot number corresponding to the hard drive is installed, so as to locate the hard drive.