Data migration using a consistency group
US12393606B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2024 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Jun 24, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2365
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Example implementations relate to computer data storage. In some examples, a controller establishes a migration link between a first storage device and a second storage device, and create a consistency group including replicating volumes and a control volume stored on the first storage device. The controller initiates, based on the consistency group, a data copy from the replicating volumes to proxy volumes on the second storage device. In response to a completion of the data copy from the replicating volumes to the proxy volumes, the controller initiates a replication of the proxy volumes to a second replication device. Further, in response to a completion of the replication of the proxy volumes, the controller transfers a copy of the control volume to the second storage device, where the transfer of the copy of the control volume completes the migration of the consistency group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.