With the rapid development of network technology and increasingly network resources, the magnitude of data storage is rose rapidly, so the data protection becomes vital to maintain business continuity, How to backup/restore data efficiently and effectively is one of the most urgent questions today. Optimizing the data assignment method of heterogeneous disk array to increase the rate of different disk array backup/restore. A feasible method of dividing heterogeneous disk I/O bandwidth to improve data read speed is proposed, which can significantly decrease backup time and storage cost compared with traditional data backup/restore method.%随着网络技术的快速发展与网络资源的日益丰富.数据的存储量级急速增长,数据保护的重要性显得尤为重要,如何快速有效地对数据进行备份/恢复成为数据保护领域亟待解决的关键问题之一.通过对异构磁盘阵列的数据分配方法进行优化,使不同磁盘阵列间进行数据备份/恢复速率提升.提出划分异构磁盘I/O带宽方式提高磁盘数据读取速度的可行性方案,与传统的数据备份/恢复相比,在时间利用率和备份性能上都得到了很大的提高.
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