Data operating method, system, client, and data server
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United States of America Patent
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app pub date -
Sep 2, 2011
filing date -
Mar 4, 2009
priority date (Note) -
Abandoned
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Abstract
A data operating method, system, client, and data server are provided. The method includes: sending a write request of a file to a data server, where the write request includes identifiers of sub-data blocks constituting the file; receiving mappings between the identifiers of the sub-data blocks and storage servers returned by the data server according to the write request; and writing the sub-data blocks to the corresponding storage servers according to the mappings. With the present invention, whether the identifiers of the sub-data blocks are saved may serve as a basis for determining whether the sub-data blocks are written, thus ensuring that no duplicate data is stored in the system and increasing the storage space of the system.
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