基于ID特征码的云存储数据分片与备份策略

Data Slice and Backup Strategy of Cloud Storage Based on ID Signature

摘要: 提出了一种基于 ID 特征码的云存储数据分片与备份策略，在查找存储节点时利用文件块 ID 和可用存储节点 ID 的对应关系与随机分配有效存储节点相结合的方法，提高了主服务器的效率；将需要备份的数据文件，在多个云节点上按指定数量建立数据副本进行分片并选择最优的备份区域存储，减小了建立数据副本的开销，提高了数据的可靠性和可用性。

Abstract: This paper puts forward a cloud storage data backup strategy based on ID signature. By using the correspondence relationship between file block ID and its available storage node ID,and the randomly assigned effective storage node to find storage nodes,the strategy improved the efficiency of a primary server.Besides, creating a copy of backup data file at a specified number of fragments and storing data in the optimal backup area in multiple clouds node can not only reduce the cost but also improve its data reliability and availability.