Research on Storage Virtualization Technologies and Comparison

Storage technology has developed from a single disk,tape to DAS,NAS,SAN storage network system,urgent demand of store environment and resources sharing driving storage virtualization to become the mainstream technology.Based on the summary of virtual memory,the basic concept,system structure,realization method and key technology of virtual memory are made the comparison and the analysis.Virtual technology is introduced based on the network,and its key technology and main implementation method are discussed.