| Data concentration has become the trend of data processing and storage, the high reliably and availability of the system become an unavoidable problem. Along with the development of cloud computing and virtualization technology, the remote active-active mode will provide highly reliable and available protection of disaster recovery. As one of the eight key information systems, the information system of the state civil aviation passenger service is crucial. China TravelSky Holding Company has proposed to build a new generation of passenger information service system, the hotspot balance of remote active-active disaster recovery center with high concurrency and large capacity is very important. The paper is researched based on this requirement, the specific work is as following:The mode and characteristics of remote active-active mode is analyzed in this paper. On this basis, combining the features and structure of civil aviation passenger information service system, the advantages and disadvantages of remote active-active mode of the “two city three operating center” are also analyzed. Finally, a single write double reading of two three-center remote active-active construction mode is determined. Based on the system architecture of “two city three operating center” and the method of the voronoi diagrams on the sphere, the paper presents a balance method that is based on datacenter region segmentation of the voronoi diagram on the sphere. This solution takes it into consideration that data center’s peak load is limited and the total distance between all assigned users and each data center can be minimized, and applies hyperbolic approximation optimization and users’ distribution estimation in the calculation process, and makes the relative validation, the results show that the effectiveness of the proposed method. Finally, the remote active-active switching mechanism of living system is explored, what’s more, a fast and intelligent switching signal generation method is presented. |
