Time and space efficient technique for creating virtual volume copies
US7886119B1 · kind B1 · utility
34Cited by
15References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Jul 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2094
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A chain of snapshots includes a more recent snapshot with a data block copied from a base volume, a less recent snapshot with a skip-pointer that leads to the data block in said more recent snapshot, and one or more intermediate snapshots between the more recent snapshot and the less recent snapshot in the chain of snapshots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.