Network Memory System Based On Virtual Apparatus

Storage of the virtual network is a necessity in the development of future storage, it can be realized in three different levels: the host server-based virtual memory, virtual storage devices based on storage, network-based virtual memory. At present, a unified virtual storage network has not yet been really realized. Programs that have emerged just did a bit of virtualization on the existing storage program from the principles of speaking. The reunification of the formation of a virtual storage network was hindered by several factors including the lack of unified standards, the increasing complexity of storage management and so on.In order to overcome these shortcomings, this paper presents a virtual device based on network storage systems. The system is a web-based system that was realized by inserting a SVA (Server Virtual Agency) into the server network storage systems and a CVA (Client Virtual Agency) into the client application. The storage subsystem report all the current attributes of the state and the corresponding parameters to the SVA server. All client requests were intercepted by CVA, then forward to the SVA, and then call the corresponding access operation strategy. The system is a combination of network storage and storage virtualization, which can be considered as a unified storage network virtualization rudiment. It allows users to operate the remote data as the same as local hard disk, at the same time, due to I / O requests across the Internet, it bring questions of the safety and efficiency.