Copying data based on overwritten probabilities
US11662937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2021 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Nov 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0671
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for replicating data involve: determining overwritten probabilities of a plurality of data blocks of a source storage device. The techniques further involve: classifying the plurality of data blocks as cold data blocks or hot data blocks based on the overwritten probabilities in the plurality of data blocks. The techniques further involve: replicating at least a portion of the cold data blocks to a target storage device prior to the hot data blocks. Accordingly, transmission resources used to re-replicate overwritten data during an initial replication period can be reduced, thereby achieving efficient data replication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.