Journaling overhead reduction with remapping interface
US11243909B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2018 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Aug 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/1815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided for improving a journaling file system by reducing journaling overhead utilizing a remapping interface to log-structured cloud block devices such that blocks in a journaling transaction are atomically mapped to their final disk locations with minimum overhead. With log-structured cloud block devices, all blocks may be stored in logfiles and indexed for access. By modifying the index of the destination block to point to the corresponding journal block, the additional write may be avoided, and a journal block may effectively be remapped from its original LBA to its destination LBA without any actual data movement, thereby reducing the file system journaling overhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.