Method for verifying data consistency of backup system, program and storage medium
US7890467B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Sep 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technology for verifying backup data capable of synchronizing timings of checksum calculation and verifying data consistency regardless of the storing position of the data is provided. In a backup system using a data update log, a checksum of data of a backup source and a checksum of backup data are checked, thereby verifying data consistency. Data check log generation means and the like are provided so that the data update log and the data check log are transmitted in order to a secondary site. By this means, the timings of the checksum calculation are synchronized. Further, by providing data area extraction means and the like, the verification of data consistency can be performed regardless of the storing position of the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.