智慧数据双活及同城容灾的构建及应用研究

Construction and Application Research on Intelligent Data Double Activity and Disaster Recovery in the Same City

针对医疗信息系统发生故障、硬件存储设备损坏的情况,导致用户医疗数据丢失、医疗业务无法正常进行的问题,本研究构建双活及同城容灾的医疗信息系统,双活数据中心同时运行为医疗业务系统提供数据服务,发生故障时实时切换保证了医疗业务的连续进行。利用纠删码编码算法对用户源数据进行编码译码,作为冗余数据存储在多维阵列中,使源数据在任何情况下都是可恢复的,提升了数据的容错率。实验结果显示,本研究医疗信息系统编码时间最短低于0.1 s,在数据量为1 GB时容灾恢复时间最短为4 min。本研究实现系统的无缝衔接和数据的自动恢复,弥补了传统容灾中心中的缺陷。

In view of the failure of the medical information system and the damage of the hardware storage device,the user's medical data is lost,and the medical business cannot be performed normally.This research component of active-active and intra-city disaster recovery medical information systems.The active-active data center runs at the same time to provide data services for medical business systems,and real-time switching in the event of a failure ensures the continuous progress of medical services.Erasure code encoding algorithm is used to encode and decode user source data,which is stored as redundant data in a multi-dimensional array,so that the source data is recoverable under any circumstances,and the error tolerance rate of the data is increased.The experiment results show that the shortest coding time of the medical information system in this study is less than 0.1 s,and the shortest disaster recovery time is 4 min when the data volume is 1 GB.This research realizes the seamless connection of the system and the automatic recovery of data,and solves the shortcomings in the traditional disaster recovery center.