Maintaining data integrity in data servers across data centers
US8676760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2008 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Aug 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2035
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, computer program product and system for maintaining data integrity of multiple copies of a piece of data in data servers of multiple data centers, includes maintaining a cluster of catalog servers, where one of the catalog servers is selected as the master catalog server, storing the piece of data in a primary data server chosen from the data servers, duplicating the piece of data to one or more backup data servers chosen from the data servers, recording a data state information to the master catalog server, duplicating the data state information to the cluster of catalog servers, and updating the data servers and the cluster of catalog servers when the primary data server fails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.