System and method for creating deduplicated copies of data by tracking temporal relationships among copies and by ingesting difference data
US8402004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Feb 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2255
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed for forming deduplicated images of a data object that changes over time using difference information between temporal states of the data object. The method includes organizing the content of the data object for a first temporal state as a plurality of content segments and storing the content segments in a data store; creating an organized arrangement of hash structures to represent the data object in its first temporal state; receiving difference information for the data object; forming at least one hash signature for the changed content; and storing the changed content that is unique in the data store as content segments, whereby a deduplicated image of the data object for a second temporal state is stored without requiring reception of a complete image of the data object for the second temporal state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.