Detection and correction of block-level data corruption in fault-tolerant data-storage systems
US8145941B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Sep 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1057
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various embodiments of the present invention provide fault-tolerant, redundancy-based data-storage systems that rely on disk-controller-implemented error detection and error correction, at the disk-block level, and RAID-controller-implemented data-redundancy methods, at the disk and disk-stripe level, in order to provide comprehensive, efficient, and system-wide error detection and error correction. Embodiments of the present invention use disk-level and stripe-level data redundancy to provide error detection and error correction for stored data objects, obviating the need for certain costly, intermediate levels of error detection and error correction commonly employed in currently available fault-tolerant, redundancy-based data-storage systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.