Block-level virtualization system for mass storage networks

A block-level in-band storage virtualization system was developed for mass storage environments.The system uses continuous regions to organize virtual and physical disks,which effectively reduces the metadata space consumption.The system also implements target-mode virtualization functions to provide good compatibility and can work with multiple nodes to eliminate performance bottlenecks.The tests show that the system latency is within 0.6% than normal network disks,and its processing ability is only limited by the physical devices in the storage network.