Using logical block addresses with generation numbers as data fingerprints for network deduplication
US9043430B2 · kind B2 · utility
6Cited by
54References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 12, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Aug 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1097
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The technique introduced here involves using a block address and a corresponding generation number as a “fingerprint” to uniquely identify a sequence of data within a given storage domain. Each block address has an associated generation number which indicates the number of times that data at that block address has been modified. This technique can be employed, for example, to determine whether a given storage server already has the data, and to avoid sending the data to that storage server over a network if it already has the data. It can also be employed to maintain cache coherency among multiple storage nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.