With the increasing demand for vast storage repositories, network storage has become important for mass data storage and processing, telescopic addressing and availability, and the quality of service and security of data storage. This situation demands the emergence of new technology in the data storage field. In this paper, TH-MSNS, a SAN system, is introduced. This system was designed and implemented based on the fiber channel protocol and its I/O route was tested. This paper introduces some of the key techniques in the network storage system, including an SCSI simulating target, intelligent and uniform storage management architecture, and the processing flow of the read/write commands. The software for the new storage area network system was implemented as a module in the kernel mode to improve its efficiency. The SCSI target adopts a layered design and standardized interface, which is compatible with various types of SCSI devices and can use different network protocols. The storage management software adopts distributed architecture, which enables higher interoperability and compatibility with various kinds of management protocols. TH-MSNS boasts characteristics such as high adaptability, high efficiency, high scalability, and high compatibility and is easy to maintain.