Providing preferential treatment to metadata over user data
US11592994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2020 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Jul 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique provides preferential treatment to metadata over user data when protecting data in a mapped-RAID system. The technique involves generating metadata based on user data, storing the metadata in mirrored storage of the mapped-RAID system (e.g., 2-way mirrored storage), and storing the user data in non-mirrored storage of the mapped-RAID system (e.g., writing user data with parity in accordance with RAID 6). The mapped-RAID system provides reliability preference toward maintaining the metadata over maintaining the user data while the metadata and the user data are stored within the mapped-RAID system. Accordingly, the technique is able to concurrently provide high reliability and high storage efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.