| 一种云存储系统数据持久存储机制 |
| |
| 引用本文： | 吴擎雯,陈亚卷.一种云存储系统数据持久存储机制[J].计算机与数字工程,2012,40(4):72-74. |
| |
| 作者姓名： | 吴擎雯 陈亚卷 |
| |
| 作者单位： | 中国联合网络通信有限公司海南省分公司 海口570216 |
| |
| 摘 要： | 针对云存储中的可靠性产生的担忧,提出一种云存储系统完善的数据存储保障机制,以保证系统的高可靠性和数据的高可用性。在处理与数据持久存储的相关的数据分片、数据分发、完整性检查以及冗余数据的维护中,引入基于纠删码的数据冗余机制,与传统的复制冗余方案相比,能够在获得相同的数据可用性时降低存储空间和网络带宽的开销多达50%以上。采用基于缓冲区的分段读入编码对纠删码算法进行优化后,提高了对文件分片与合并的平均编码速率。
|
| 关 键 词： | 数据持久存储机制 纠删码 冗余策略 |
A Durable Data Storage Mechanism in Cloud Storage System |
| |
| WU Qingwen
,
CHEN Yajuan.A Durable Data Storage Mechanism in Cloud Storage System[J].Computer and Digital Engineering,2012,40(4):72-74. |
| |
| Authors: | WU Qingwen CHEN Yajuan |
| |
| Affiliation: | (Hainan Branch of China Unicom Network Communications Co.,Ltd.Haikou 570216) |
| |
| Abstract: | A durable data storage mechanism is defined to effectively ensure the system reliability and data availability to avoid worrying about the reliability of cloud storage system.Compared with conventional backup mechanism based on replication,the data redundancy scheme based on erasure codes can reduce more than fifty percents of the overhead of storage space and network bandwidth with the same data availability.Setting buffer in the process of coding can improve the coding efficiency significantly,and increase the algorithm’s average coding rate in the file fragmentation and merging. |
| |
| Keywords: | durable data storage mechanism erasure codes redundancy scheme |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
