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With the constant development and wide application of modern network storage technology, both of network clustering service and host multi-path become important kernel technologies in the disaster recovery of information systems and the secure solutions field. In the thesis, network clustering service and host multi-path are integrated throuth Microsoft MPIO multi-path framework, that is, the host multi-path based on MPIO and associated applications are researched on the network clustering environment. And then, system disaster recovery and troubleshooting are researched and analyzed throngh the two aspects of system server and physical transmission path.In this thesis, the host multi-path network storage solution based on Hyper-V and WSFC cluster is researched. And then, the core component of MPIO, i.e., DSM device subsystem, is analyzed, designed and implemented in detail, whose main tasks contain selecting optimal path intellegently, disk device management, network clustering service, I/O error and exception process.Firstly, the background, current situation and associated theories are introduced in the thesis. Secondly, MPIO multi-path is analyzed and researched on the network clustering environment in Chapter three, including MPIO framework and function analysis, integration solution research of network clustering service and host multi-path. Thirdly, in Charpter four, the DSM device subsystem of MPIO is analyzed and designed, mainly including DSM device subsystem analysis based on MPIO framework, and architecture design of each module. Especially, in the module of intellegent routing path, an intelligent strategy to select path is proposed and designed, with which the blindness of setting routing algorithm manually is resolved; in the module of device manage and exception process, the MPIO bogus path also is resolved in this chapter. Finally, the DSM device subsystem is implemented and verified according to the detailed design in previous. The test results show that this DSM device subsystem works normally, and the intelligent algorithm also runs with a good I/O transfer performance.
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