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从上海公共交通卡中央清算系统(CCHS)远程容灾的基本需求出发,详细分析了容灾涉及的相关技术,设计了完整的远程容灾系统。系统经实际切换检验,达到了关键业务数据RPO接近0、RTO小于6小时的容灾建设目标。
Based on the basic requirements of remote disaster recovery of Shanghai Public Transport Card Central Clearing System (CCHS), the relevant technologies involved in disaster recovery are analyzed in detail and a complete remote disaster recovery system is designed. The system has been verified by actual handover and has reached the target of disaster recovery and reconstruction with the RPO of the key business data being close to 0 and the RTO being less than 6 hours.