| 摘要 |
Embodiments of the present invention relate to a redundancy method, system, and apparatus, which can acquire first description information of a cloud application needing redundancy, where the first description information includes information about a source virtual machine and a source network which are used at a production site by the cloud application needing redundancy; and can generate second description information of the cloud application needing redundancy at a redundancy site based on the first description information that gives an overall description about the cloud application needing redundancy, where the second description information gives an overall description about the deployment of the cloud application needing redundancy at the redundancy site; and the redundancy site is capable of acquiring the second description information, to recover the cloud application needing redundancy at the redundancy site, thereby implementing redundancy based on a cloud application. Different from a manner of redundancy based on a virtual machine granularity in the prior art, the embodiments of the present invention implement configuration and recovery for redundancy at an application level, and avoid a possible problem, which is caused by the redundancy based on a virtual machine granularity, that a cloud application cannot be completely and rapidly recovered. |
