Storage device array architecture with solid-state redundancy unit
US6289471A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1995 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Dec 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1435
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fault tolerant storage subsystem includes a first tier of failure independent data storage units coupled to a storage controller, and a second tier, including at least one failure independent data storage unit, coupled to at least one of the failure independent data storage units in the first tier for providing further fault tolerance thereto. The first tier of failure independent data storage units may include a partially heterogeneous group of data storage units, which may include a solid state data storage unit. Data blocks representative of data received from the storage controller are stored on at least a first subset of the first tier of failure independent data storage units and associated redundancy blocks representative of redundancy information associates with the data blocks are stored on a second subset of the first tier of failure independent data storage units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.