System and method for creating deduplicated copies of data by sending difference data between near-neighbor temporal states
US8417674B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Nov 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/1756
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed for using a first deduplicating store to update a second deduplicating store with information representing how data objects change over time, said method comprising: at a first and a second deduplicating store, for each data object, maintaining an organized arrangement of temporal structures to represent a corresponding data object over time, wherein each structure is associated with a temporal state of the data object and wherein the logical arrangement of structures is indicative of the changing temporal states of the data object; finding a temporal state that is common to and in temporal proximity to the current state of the first and second deduplicating stores; and compiling and sending a set of hash signatures for the content that has changed from the common state to the current temporal state of the first deduplicating store.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.