Abstract: taking the data disaster recovery construction project of a provincial department of natural resources as the background, starting with the analysis of the current data situation, this paper studies and realizes the data disaster recovery and real-time data recovery of three nodes in different places at the provincial and municipal levels, adopts the technical methods of local dual active storage technology, data backup technology and remote replication, and puts forward the design and technical implementation scheme of three nodes in both places, based on this scheme, the construction of data disaster recovery system of two places and three centers of natural resources in a province is carried out. after the successful implementation of the system and disaster recovery drill, it has achieved the rapid recovery of local and remote data, realized the security of data and rapid application of the system in a province, met the requirements of network security level protection and information security risk assessment, and the application effect is good. this paper puts forward the application innovation of key technologies such as dual live technology based on storage system, asynchronous remote replication technology based on storage system and rapid recovery of business system based on disaster recovery software, which provides valuable experience and reference for the construction of similar systems. 

Key words: land and resources, data backup and disaster recovery, remote disaster recovery, continuous data protection, storage dual active

摘要： 本文以某省自然资源厅数据灾备建设项目实例为背景，通过从数据现状分析入手，研究实现省级和市级异地两地三节点的数据灾备和可实时数据恢复为目的，采用本地双活存储技术、数据备份技术和远程复制等技术方法，通过提出两地三节点的设计及技术实现方案，并基于该方案开展了某省自然资源两地三中心的数据灾备系统建设．经过系统的成功实施和容灾演练，达到了本地和异地的数据快速恢复，实现了某省数据的安全和系统快速应用，符合网络安全等级保护和信息安全风险评估要求，应用效果良好．本文提出了基于存储系统的双活技术、基于存储系统的异步远程复制技术、基于容灾软件的业务系统快速恢复等关键技术应用创新，为同类系统建设提供了有参考价值的经验和借鉴．

关键词: 自然资源, 数据灾备系统, 异地容灾, 远程复制, 存储双活