Method for storing data in a geographically-diverse data-storing system providing cross-site redundancy
US6970987B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2003 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Dec 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of redundantly storing data in a geographically-diverse data-storing system is presented. The data-storing system has one or more data sites and a set of data-protecting sites. A new version of a set of data is written to a first data site, and a representation of the new version is generated. The representation is transmitted from the first data site to a subset of the data-protecting sites. At each data-protecting site, the representation is stored and an acknowledgment of the storing is transmitted back. Also, upon receipt back of a commit command, a data-protecting operation is performed on the representation to generate a data-protecting value, which is also stored. Then, storage corresponding to the representation is released. Further, at a first data site, once acknowledgments from each data-protecting site are received, a commit command is transmitted to the subset of data-protecting sites. Additionally, storage is released corresponding to a previous version of the set of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.