Apparatus for managing plural versions of a root node for an object of a file system
US8639731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2012 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Jun 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99948
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for managing plural versions of a root node for an object of a file system manages an update data of a first version of the plural versions of the root node in a status in which (i) data of a second version of the plural versions of the root node is written from the second storage of the file server to the first storage and (ii) a new checkpoint, capable of being used when the object of the file system is recovered, is taken. The apparatus also manages an update data of the second version of the plural versions of the root node in another status in which (iii) data of the first version of the plural versions of the root node is written from the second storage of the file server to the first storage and (iv) a next new checkpoint is taken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.