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Abstract ▼ AI-Helper

SSD is a data storage using semiconductor memory without mechanic movement compared to popular HDD. Flash-based SDD has good read performance but has several limitation of out-place update and wear-leveling, which affects life-span of SSD. However it is frequently used in the storage system treating...

SSD is a data storage using semiconductor memory without mechanic movement compared to popular HDD. Flash-based SDD has good read performance but has several limitation of out-place update and wear-leveling, which affects life-span of SSD. However it is frequently used in the storage system treating important data and the notebook. because its performance is superior to HDD. In this paper, we propose a hybrid data deduplication method to combine the advantages of existing data duplication techniques when the SSDs are used for server storage, and the proposed method uses in-line deduplication to move small data to the server and post-processing deduplication to move large data. Experimental results show that the write frequency of the proposed method is 32% less than that of post-processing deduplication method and the operation time of the proposed method is 16.7% faster than that of in-line deduplication, so that we can see it outperforms existing methods in terms of wear-leveling.

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