Incremental backup operations in a transactional file system
US9690666B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2012 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Oct 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0683
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various systems and methods for performing incremental backups in transactional file systems. For example, one method involves performing the first stage of a multi-stage write operation, where the write operation writes a data block. The method then involves performing a backup operation. However, the backup operation does not backup the modified block, since not all stages of the multi-stage write operation have been performed. The method involves updating metadata to indicate that though the data block was modified and a backup operation was performed, the data block was not included in the backup operation. After all stages of the multi-stage write operation have completed, e.g., a transaction is committed, a subsequent backup operation is performed. The data block is backed up during the subsequent backup operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.