Invention Grant
US09588981B2 Data deduplication using CRC-seed differentiation between data and stubs
有权
使用数据和存根之间的CRC种子差异进行重复数据删除
- Patent Title: Data deduplication using CRC-seed differentiation between data and stubs
- Patent Title (中): 使用数据和存根之间的CRC种子差异进行重复数据删除
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Application No.: US14637169Application Date: 2015-03-03
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Publication No.: US09588981B2Publication Date: 2017-03-07
- Inventor: Allen K. Bates , Nils Haustein , Craig A. Klein , Frank Krick , Ulf Troppens , Daniel J. Winarski
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Griffiths & Seaton PLLC
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06F11/10 ; H03M13/09
Abstract:
Various embodiments for differentiating between data and stubs pointing to a parent copy of deduplicated data. Undeduplicated data is stored with a checksum of an initial value. A stub pointing to the parent copy of the deduplicated data is stored with an additional checksum of a differing, additional initial value.
Public/Granted literature
- US20150178307A1 DATA DEDUPLICATION USING CRC-SEED DIFFERENTIATION BETWEEN DATA AND STUBS Public/Granted day:2015-06-25
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