Method and apparatus for data duplexing in storage unit system
US6665781B2 · kind B2 · utility
13Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Sep 19, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
With the purpose of achieving consistent non-synchronous copying of data from a plurality of primary side control units to a plurality of secondary side control units, all of the secondary side control units are connected via a loop, and each of the secondary side control units determines guarantee time by circulating a time added to the data received from the primary side control units via said loop communication route. A consistent data copying is guaranteed by circulating the determined guarantee time via the loop communication route.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.