Loose synchronization of virtual disks
US8291180B2 · kind B2 · utility
11Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2008 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jan 14, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2094
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Computer implemented methods, computer program products and computer systems synchronize copies of a virtual disk. A record of blocks that are modified during an access session of a copy of the virtual disk is maintained. For each partition of the virtual disk, a file system level indication of currently relevant blocks is obtained. Only those blocks that were modified during the access session and are currently relevant are copied to at least one additional copy of the virtual disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.