Invention Grant
US08299944B2 System and method for creating deduplicated copies of data storing non-lossy encodings of data directly in a content addressable store 有权
用于在内容可寻址商店中直接存储数据的非损耗编码的数据的重复数据删除副本的系统和方法

System and method for creating deduplicated copies of data storing non-lossy encodings of data directly in a content addressable store
Abstract:
Systems and methods are disclosed for storing deduplicated images in which a portion of the image is stored in encoded form directly in a hash table, the method comprising: organizing unique content of each data object as a plurality of content segments and storing the content segments in a data store; receiving content to be included in the deduplicated image of the data object; determining if the received content may be encoded using a predefined non-lossy encoding technique and in which the encoded value would fit within the field for containing a hash signature; if so, placing the encoding in the field and marking the hash structure to indicate that the field contains encoded content; otherwise, generating a hash signature for the received content and placing the hash signature in the field and placing the received content in a corresponding content segment if it is unique.
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