Recreation of archives at a disaster recovery site
US6691139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Nov 30, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for creating a standby data processing system located at a standby site, which is remotely located from a primary site. The method comprises a first step of computing a difference between an active data file and an archive data file to produce a delta image at the primary site. Another step is transmitting the active data file and the delta image, separately in time sequence, from the primary site to a standby site. A final step is combining the delta image with the active data file at the standby site, to produce an archive data file. An advantage of this method is the creation of a standby data processing system, while using a lower bandwidth to create this additional site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.