Method for accessing remote logic equipment through multiple routes in Linux system

The invention relates to a method for accessing a remote logical unit in a Linux system in a multipath manner. The method is used for realizing multipath access between an initiator and a target in a storage area network (SAN), and comprises the following steps: the initiator establishes on-line communication with the target and requests to establish at least one on-line session with the target; the initiator obtains internet small computer system interface (iSCSI) on-line host allocated by the target and acquires on-line equipment information corresponding to the iSCSI on-line host by returning a logical unit number (LUN) command; and the initiator which is equipped with an equipment mapping instrument generates redundant equipment information according to the on-line equipment and the corresponding LUN, and maps the redundant on-line equipment to be singular mapping equipment.