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System and method for retrieving and using block fingerprints for data deduplication
System and method for retrieving and using block fingerprints for data deduplication
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机译:检索和使用块指纹进行重复数据删除的系统和方法
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摘要
A system and method for calculating and storing block fingerprints for data deduplication. A fingerprint extraction layer generates a fingerprint of a predefined size, e.g., 64 bits, for each data block stored by a storage system. Each fingerprint is stored in a fingerprint record, and the fingerprint records are, in turn, stored in a fingerprint database for access by the data deduplication module. The data deduplication module may periodically compare the fingerprints to identify duplicate fingerprints, which, in turn, indicate duplicate data blocks.
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