Methods and devices for multi-level data protection in a storage system
US10860445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2019 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Jun 28, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for multi-level data protection in a storage system. The storage system comprises a first storage device, a second storage device, and a third storage device, the method comprising: establishing a synchronous replication session between the first storage device and the second storage device so as to synchronously replicate data in the first storage device to the second storage device; establishing an asynchronous replication session between the first storage device and the third storage device so as to asynchronously replicate the data in the first storage device to the third storage device; and recovering the asynchronous replication by establishing an asynchronous replication session between the second storage device and the third storage device in response to a failure of the first storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.