基于纠错编码的云数据恢复技术的研究

Research on cloud data recovery technology based on error correction coding

针对云计算数据管理系统中数据节点容易产生丢失、乱序和失效等问题,研究了一种基于纠错编码的云数据恢复技术。在完整恢复技术中,通过恢复产生的新数据编码包含了灾备系统失效的存储点编码,只要恢复的灾备系统支持最大可偏移距离编码。在精准定位恢复技术中,系统需精准地恢复失效的或者丢失的数据编码。

Aiming at the problems of cloud computing data node in the data management system such as loss,out-of-order and failure,a cloud data recovery based on error correction coding technology is designed. Cloud data recovery technology design mainly includes three types： complete data recovery technology,data precision positioning recovery technique and partial data precision positioning recovery technique. In full recovery technique,the data generated by restoring code contains the disaster preparedness system failure save point code,as long as the disaster recovery system supports maximum offset distance encoding. In precise positioning recovery technique,the system should accurately restore failure or loss of data encoding.