Inode management in redirect-on-write file system
US8396833B2 · kind B2 · utility
1Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Nov 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/128
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments of the inventive subject matter allow a redirect-on-write file system to continue processing file transactions while writing a snapshot to persistent storage. Thus, embodiments do not block file transactions while flushing snapshots to persistent storage. To avoid blocking, some embodiments the file system can maintain two snapshot generations. The first snapshot generation is the snapshot being written to persistent storage. The second snapshot generation may reside in main memory, and store data for file transactions occurring after the file system began writing the first snapshot generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.