Post data synchronization for domain migration
US10771534B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2019 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Mar 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45595
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for post data synchronization in live migration of domains. Host devices on a network may implement virtual machines (VMs) as domains in an execution environment, and may provide local persistent storage for data of the VMs. A migration technique for moving a domain including the persistent data from one host device to another host device is described in which the VM is instantiated on the target device, and the domain is switched to the target device. Synchronization of the VM's data from the persistent storage on the source device to the target device is then initiated, for example according to a distributed replicated storage technique that makes the target device's persistent storage the primary storage and the source device's persistent storage the secondary storage for the VM. Once the data is synchronized, the VM and its respective storage on the source device are released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.