Data storage system, process, and computer program for de-duplication of distributed data in a scalable cluster system
US10929042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2016 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/215
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data de-duplication in a distributed storage of data objects in a cluster system, in which plural data objects are distributed across a group of node apparatuses and stored in units of data blocks. Each metadata structure including a root metadata node and one or more direct metadata nodes, and optionally including one or more indirect metadata nodes; and a metadata object is stored for managing de-duplicated data blocks based on a metadata structure of the metadata object wherein at least one direct metadata node of the metadata structure of the metadata object includes a block reference pointing to a de-duplicated data block being associated with two or more data objects. Preferably, each of the metadata structures of the two or more data objects being associated with the de-duplicated data block includes a respective direct metadata node including an object reference to the metadata structure of the metadata object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.