Continuous data protection using a write filter
US12013763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2022 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9027
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A reference snapshot of a storage is stored. Data changes that modify the storage are received. The data changes are captured by a write filter of the storage. The received data changes are logged. The data changes occurring after an instance time of the reference snapshot are applied to the reference snapshot to generate a first incremental snapshot corresponding to a first intermediate reference restoration point. The data changes occurring after an instance time of the first incremental snapshot are applied to the first incremental snapshot to generate a second incremental snapshot corresponding to a second intermediate reference restoration point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.