Shadow directory structure in a distributed segmented file system
US7430570B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2004 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Jun 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for producing a shadow directory structure for files or directories owned by servers whose parent directories are owned by different servers in a single distributed file system. For each file or directory whose parent directory resides on a remote server, the server owning the file or directory produces a shadow directory structure. The shadow structure may be used in a variety of ways, e.g., to access an orphan when the server owning the orphan's parent directory is offline (e.g., down, failed, or otherwise inaccessible), or to perform a partial file system consistency check (a partial fsck) to verify consistency of segments of the file system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.