In this paper, we propose a new data declustering method-RCMD, which is effective for all kinds of queries.

理论分析和试验结果表明本文提出的RCMD方法优于现有的数据分布方法，具有最好的查询处理性能。

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After studying the questions of data allocation and tile declustering in heterogeneous disk systems, a same-rate virtual disk dividing method and a virtual disk sorting method are proposed.

着重讨论了异构磁盘系统的数据分配和瓦片分布问题，提出了一种速率均匀虚拟磁盘划分方法和一种虚拟磁盘排序方法。

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