Disaster recovery switchover method and system, and node

A recording node associated with a disaster recovery switchover system, comprising:

• a receiver configured to receive first restoration information from a production node of the disaster recovery switchover system, wherein the first restoration information is required for restoring a first production service to a latest running status of the first production service, wherein the disaster recovery switchover system further includes a production node and a redundancy node, the recording node and the production node are deployed at a same location, a redundancy capability of the recording node is higher than that of the production node, the production node currently runs a first production service;
• a processor configured to determine whether the first production service needs to be restored on the redundancy node;
• and
• a transmitter configured to send second restoration information to the redundancy node when the processor determines that the first production service needs to be restored on the redundancy node, wherein the second restoration information is obtained according to the first restoration information and is required to restore the first production service on the redundancy node, so that the first production service is switched to the redundancy node according to the second restoration information.