Snapshot preserved data cloning
US8656123B2 · kind B2 · utility
64Cited by
33References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 2009 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Mar 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and device for cloning snapshots is provided. A new snapshot can be created by cloning an existing snapshot. The clone snapshot may use the preserved data of the existing snapshot, thereby obviating the need to copy the preserved data. Additionally, the clone snapshot may be created with a data structure for storing write data. Since the clone snapshot initially has no write data to store, the creation of the entire clone snapshot can be accomplished without copying any preserved data or write data from the existing snapshot, thereby increasing the efficiency with which a clone snapshot can be created.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.