Patent ID: 6854027

Claim:
A hard disk device capable of detecting channels of a host to which hard disk controllers belong comprising: at least two hard disks used to store data and connected to a plurality of channels of a host; at least two enclosure-controllers each connected to one of said hard disks and used to control environmental parameters and accomplish interactive relationship of information transmission with said host; at least two current sensors each connected to one of said hard disks and one of said enclosure-controllers and used to detect current variation of said hard disk, transform the variation into a voltage signal and transmit the voltage signal to said enclosure-controller, said enclosure-controller then converting said voltage signal into a flag; and at least two serial buses each connected to one of said enclosure-controllers and providing connection with said host for processing communication protocols and data transmission of connection interface, said host reading said flag triggered by said enclosure-controller via said serial bus to build the corresponding relation between said channel connected to said hard disk and said enclosure-controller.