An adaptive fault tolerance strategy for cloud storage = An adaptive fault tolerance strategy for cloud storage

다국어 초록 (Multilingual Abstract)

With the growth of the massive amount of data, the failure probability of the cloud storage node is becoming more and more big. A single fault tolerance strategy , such as replication and erasure codes, has some unavoidable disadvantages, which can not meet the needs of the today`s fault tolerance. Therefore, according to the file access frequency and size, an adaptive hybrid redundant fault tolerance strategy is proposed, which can dynamically change between the replication scheme and erasure codes scheme throughout the lifecycle. The experimental results show that the proposed scheme can not only save the storage space(reduced by 32% compared with replication), but also ensure the fast recovery of the node failures(increased by 42% compared with erasure codes).

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