A Multi-channel and Real-Time Disaster Recovery Backup Method Based on P2P Streaming

The cost of backup for disaster recovery using leased line is high and there is also a conflict between fixed bandwidth of the leased line and dynamic changes of backup data size. The transmission of leased line also has danger of single point failure. In this paper, we put forward a multi-channel and real-time disaster recovery backup method based on P2P streaming. We designed the transmission model and backup algorithm which consisted of node joining and leaving algorithm, data sending and receiving mechanism of multi-channel and self-adaptive bandwidth. We also designed network nodes conflict resolution algorithm to ensure transport channel redundancy. We evaluated the important metrics of RTO and RPO under different conditions and optimized algorithm in terms of metrics improvement and efficiency. Finally, we carried out simulation experiments.