Typically, data backup processes contain the highest levels of duplication.

数据备份过程通常含有最高级别的重复数据删除。

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Firstly, initiate research on data de-duplication mechanism of mass data backup is made from three aspects which contains data de-duplication manner, storage strategy, access strategy.

首先从消冗方式、存储策略、访问策略三个方面对海量数据备份的消冗机制展开研究。

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