Resilient distributed replicated data storage system
US8843447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0637
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A resilient distributed replicated data storage system is described herein. The storage system includes zones that are independent, and autonomous from each other. The zones include nodes that are independent and autonomous. The nodes include storage devices. When a data item is stored, it is partitioned into a plurality of data objects and a plurality of parity objects are calculated. Reassembly instructions are created for the data item. The data objects, parity objects and reassembly instructions are spread across nodes and zones in the storage system according to a policy for the data item. When a zone is inaccessible, a virtual zone is created and used until the intended zone is available. When a read request is received, the data item is prepared from the lowest latency nodes according to the reassembly instructions, and a virtual zone is accessed in place of a real zone when the real zone is inaccessible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.