Distributed file system using disk servers, lock servers and file servers
US7406473B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2003 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Feb 11, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99938
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A distributed file system is disclosed. A plurality of disk servers, operating as a single distributed disk server layer, are connected to the one or more physical disks. Each disk server stores meta-data for each of the files. A plurality of lock servers, having one or more locks for each file operates as a single distributed lock server to coordinate access to the files stored by the disk server layer. A plurality of asynchronous file servers, operating as a single distributed file server layer in response to a request for a file from a user program: (i) retrieves the requested file from the disk server layer and at least one lock, associated with the retrieved file, from the lock server, and (ii) retrieves meta-data for at least one file that is related to the requested files, and at least one lock, for each file that has had its meta-data retrieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.