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Multitiered storage systems, which are made up of heterogeneous devices, are widely used in distributed environments to accelerate the I/O performance of upper big data applications. It raises new challenges in efficient data migration through smart caching mechanisms among heterogeneous storage levels, such as MEM‐SSD‐HDD. To optimize the cache policy scheduling mechanism on the distributed tiered...
Utilizing new type devices, such as SSD, to improve I/O performance of hybrid storage has become a tendency recently. Many efforts are made to apply the new type devices to hybrid storage in distributed environment, but most of them are confined to the specific file systems, such as HDFS. Besides, the low performance of HDFS descends the performance of hybrid storage. In this paper, we improve the...
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