Patent · US Active

Partitioned data replication

US11074224B2 · kind B2 · utility

0Cited by

5References

31Claims

0Family size

Assignee

Apple Inc. · US

Inventors

James Qiu · Santa Clara, US
Hui Wang · San Mateo, US
Frank Lu · London, GB

Key dates

Filing date	May 11, 2015
Grant date	Jul 27, 2021
Priority date	—
Expiry date	Nov 7, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/178
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

System, method, and computer program product for partitioned data replication are described. A data replication system can partition a file stored on a primary storage device into multiple data blocks, and store an index mapping the blocks and the file. Initially, the system can replicate the file and the index to a secondary storage device. The data stored in the file can change after the initial replication. The system can determine which block among the data blocks has changed by updating the index and comparing the updated index with the original index. The system can then replicate the change by replicating only the changed block and the updated index to the secondary system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.