【摘要】 为了适应海量规模存储环境的要求,设计并实现了一种块级别的带内存储虚拟化系统(AXUM)。它使用连续空间段来组织虚拟盘和物理盘,减少了元数据的空间开销。并通过实现目标器模式的虚拟化服务,提供良好的兼容性。同时,AXUM利用多节点协同工作消除了性能瓶颈。实验结果表明:相对于普通网络磁盘,AXUM虚拟化系统带来的延迟在0.6%以下,而该系统的数据处理能力仅受限于物理设备的性能,适用于海量存储网络环境。更多还原

【Abstract】 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.更多还原