Method and apparatus for multi-copy replication using a multi-splitter
US9189341B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Nov 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/82
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Conventional methods of multi-site replication require a data protection appliance (DPA) to split IOs arriving at a volume from a host to a plurality of replica volumes. However, in example embodiments of the present invention, a splitter in the data path may split the IOs to a plurality of replica volumes. In order to create multiple, independent copies of a volume, the splitter will expose the volume to the production site DPA as a plurality of volume instances. Each volume instance may be part of a separate consistency group to be replicated to separate replication sites. Thus, the DPA may attach the splitter to several consistency groups and thus create multiple replicas at one or more replication sites of the same volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.