Read-write snapshots
US7165156B1 · kind B1 · utility
49Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2003 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Jan 23, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A chain of snapshots includes read-write snapshots descending from a read only snapshot. The read only snapshots presents a constant view of the data at the time the read only snapshot is created, and the read-write snapshot starts with the view but can be modified by the user without changing the view of its parent snapshot (e.g., the read only snapshot). Accordingly, the read-write snapshot can be written for various testing purposes while the read only snapshot remains undisturbed to preserve the original data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.