Method, system, and program for maintaining electronic data as of a point-in-time
US6611901B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1999 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Jul 2, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method, system, program, and data structures for maintaining electronic data at a point-in-time. A first data structure indicates point-in-time data at one of a first storage location and a corresponding second storage location. A second data structure indicates point-in-time data at one of a first storage location and corresponding second storage location. A first relationship data structure indicates a relationship between the first storage location and corresponding second storage location and a second relationship data structure indicates a relationship between the first storage location and second storage location. A request to process the first storage location is processed by processing the first relationship data structure to determine the corresponding second storage location for the first storage location and processing the first data structure to determine whether data at the first storage location was transferred to the second storage location. A request to process the second storage location is processed by processing the second relationship data structure to determine the corresponding first storage location for the second storage location and processin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.