Methods for creating hierarchical copies
US7549029B2 · kind B2 · utility
3Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2005 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | May 5, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2071
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for copying a logical volume in a data storage system includes forming a first logical volume, storing in physical storage of the data storage system a quantity of data of the first logical volume, and receiving a first command to copy the first logical volume to a second logical volume. In response to the first command, meta-data is formed having a size that is independent of the quantity of the data. In response to a second command to access the data, the meta-data is used to access the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.