Eventually consistent synchronous data replication in a storage system
US10019194B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2016 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Oct 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described embodiments provide systems and methods for operating a storage system. One or more production volumes of the storage system are selected for continuous replication. A number, N, is selected that is associated with a number of damaged volumes the storage system can sustain and maintain data consistency. Write transactions from a host to an associated one of the selected one or more production volumes are intercepted. The intercepted write transactions are sent to the associated production volume and to a plurality of copy volumes. When acknowledgments of the write transaction have been received from N copy volumes, the write transaction is acknowledged to the host.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.