Methods for storing data in a data storage system where a RAID-X format or formats are implemented at a file level
US7793146B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2007 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Feb 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1092
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage system where a RAID-X format is implemented at a file level includes storage devices, and one or more nodes that access files from the storage devices. N represents a maximum limit of failures beyond which reconstruction of a file stored using the file level implementation is not possible. A directory is encoded for each of a plurality of files, and a map is encoded that includes a list of storage devices where components of the directory associated with the map reside. The encoding of the directory is performed using a RAID-X format that can tolerate at least N+1 failures prior to being unable to reconstruct the directory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.