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云盘是拥有移动性、便捷性、灵活性和按需功能的新一代网络存储服务平台.随着云盘存储服务的不断应用及存储数据量的不断增加,如何提高存储文件的可靠性,保证存储文件持续、有效的被访问成为一个必须解决的问题.通过分析现有冗余存储机制,提出了面向多云盘的N+i模式的编码冗余存储机制;利用数据拆分及编解码的思想来解决云盘存储数据的可靠性问题.通过用户终端对存储文件进行编码冗余化处理,将存储文件的冗余化处理权限转移到用户终端,有效解决了用户对云盘存储数据的可靠性不信任问题;同时多云盘存储用户文件有效分担了单云盘存储数据的安全风险.当存储数据的云盘发生故障或失效时,用户终端利用可用云盘中的数据即可恢复原始文件,并对数据恢复的可行性进行了论证.最后对单云盘及多云盘两种存储方式的可靠性进行了分析比较,得出基于N+i模式的多云盘并行存储能够有效增强存储文件的可靠性.
Cloud disk is a new generation of network storage service platform with mobility, convenience, flexibility and on-demand functions.With the continuous application of cloud disk storage services and the increasing amount of stored data, how to improve the reliability of storage files, ensure It is an issue that must be solved to store the file continuously and efficiently.Analyzing the existing redundant storage mechanism, a coding redundancy storage mechanism of N + i mode for multi-disk is put forward. The idea of data split and codec So as to solve the reliability problem of the storage data of the cloud storage disk .. The user terminal can encode and redundantize the storage file and transfer the redundancy processing permission of the storage file to the user terminal so as to effectively solve the reliability Mistrust, and meanwhile the user files in the cloudy disk effectively share the security risk of storing data in the single-disk. When the cloud disk storing the data fails or fails, the user terminal can recover the original file by using the data in the available cloud disk The feasibility of data recovery is demonstrated.Finally, the reliability of two storage methods of single cloud disk and multi-disk is analyzed and compared Parallel storage disk based cloudy N + i mode can effectively enhance the reliability of the file is stored.