A Design of Asynchronous Remote Mirroring Protocol Based on Log
一种基于日志的异步远程镜像协议的设计

Remote Mirroring is an effective technology for disaster tolerance. This paper describes an asynchronous remote mirroring protocol based on log, which decreases the workload of network by using write coalescing and asynchronous propagation. This paper also designs an atomic update schema that ensures uniform date snapshot between primary storage system and secondary storage system. The protocol ensures that storage system can rapidly response I/O request, while ensures data consistency between primary and secondary storage system.