Reconfigurable distributed storage in "cloud"
Reconfigurable distributed storage in "cloud"
复制标题
“云”中可重构分布式存储
DOI：
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复制
发表时间：
2011
期刊：
影响因子：
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通讯作者：
Zhang, Zhan
中科院分区：
文献类型：
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作者：
Cui, Zhong-Qiang;Zuo, De-Cheng;Zhang, Zhan
分布式存储是云计算的基础，它在不同的位置替换副本。复制已经成为提高云计算可靠性的主要方法，如何维护副本之间的一致性成为基本问题。本文提出了一种基于主备的分布式共享存储算法，它可以动态地重新配置副本，从而提高系统的可用性和可靠性，并维护副本之间的一致性。副主机发出可配置的请求，但读写请求由客户端发出；第二，读操作通过读一个进行优化，当一些副本失败时，写操作可以完成；第三，读写操作可以与可重构操作并发运行；最后，该算法可以容忍n-1个故障节点。
Distributed storage is the basis of the"cloud computing".It replaces the replicas in different locations.Replication had been the main method to improve the reliability of cloud computing.It became the base issue that how to maintain the consistency between replicas.This paper imposes distributed share memory algorithm which is based on primary-backup,it can dynamic reconfigurable replicas,so that improving availability and reliability of the system,and maintain consistent between replicas.First,the system sets the auxiliary master,the master storage the configuration of the replicas and active replicas. The auxiliary master imposes configurable request,but read/write request is imposed by clients;second, read is optimized by reading one,write operation can complete when some replicas failed;third,read/write operation can concurrently run with reconfigurable operation;final,the algorithm can tolerance n-1 failure nodes.