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The RAID5x is a two-disk failure-tolerant scheme of disk array that can be moved to the distributed environments. This new scheme called RAID5x variation can guarantees fault tolerance both to double node and double disk failures, there are two variations based on data distribution for placing data, parity, and mirrored copies within a periodical stripe: disk clustering and disk de-clustering. Then...
Disk mirroring or RAID1 is a popular paradigm to achieve fault tolerance and high reliability, this paper describes four mirrored disk organizations: basic mirroring, group rotate declustering, interleaved declustering, chained declustering, then the membership function of the states is defined and the reliability of mirrored disk system is analyzed by using the reliability theory based on fuzzy state.
This paper presents a data placement of a two-disk failure-tolerant disk arrays system, a code-mixing solution RAID5x with XOR-based code and mirror for disk arrays to improve performance of accessing storage system with high reliability. RAID5x is not only just higher in storage efficiency than other code-mixing solutions of the same type, but also it has the higher accessing performance over them...
Self-management is an attractive work for storage systems. In this paper, we introduce some methods of self-tuning RAID into cluster-based storage system. An iterative approach is used to dynamically select an optimal redundancy scheme for a workload and move data to corresponding storage devices
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