Invention Grant
- Patent Title: Systems and methods for managing deduplication reference data
- Patent Title (中): 用于管理重复数据删除引用数据的系统和方法
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Application No.: US13734901Application Date: 2013-01-04
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Publication No.: US08954398B1Publication Date: 2015-02-10
- Inventor: Xianbo Zhang , Haibin She , Fanglu Guo , Chao Lei , Shuai Cheng , Haigang Wang , Dongxu Sun , Hongxing Guan , Wen Feng Jiang
- Applicant: Symantec Corporation
- Applicant Address: US CA Mountain View
- Assignee: Symantec Corporation
- Current Assignee: Symantec Corporation
- Current Assignee Address: US CA Mountain View
- Agency: ALG Intellectual Property, LLC
- Main IPC: G06F17/30
- IPC: G06F17/30

Abstract:
A method for managing deduplication reference data may include (1) identifying multiple of data containers configured to store a plurality of deduplicated data segments that are referenced by multiple data objects within a deduplicated data system, (2) maintaining multiple reference databases including (i) a first reference database corresponding to a first subset of the data containers and (ii) a second reference database corresponding to a second subset of the data containers, the second subset differing from the first subset, (3) determining that a data object references at least one segment within a first data container within the first subset but does not reference any data segment within a second data container within the second subset and (4) updating the first reference database with information specifying that the data object references at least one data segment within at least one data container within the first subset of data containers.
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