Design And Implemention Of Shinow Cloud Disaster Recovery System For Blood Station

Currently,70% of blood stations nationwide use standardized information management systems to reduce human error,improve work efficiency and provide accurate and detailed blood information data.However,blood-based information systems can suffer from hardware and software failures,earthquakes,fires and other factors,resulting in loss of blood data.Although blood stations itself has used disaster recovery technology,local backup has its own limitations.In the face of large-scale disasters such as fires,it is still incapable of doing anything,so it is very necessary to provide cloud sites with remote disaster recovery services.Based on the analysis and research of blood station information management system Shinow9.0,according to the characteristics of Shinow9.0 database backup and disaster recovery of blood stations business,it designs a real-time backup and uninterrupted disaster business Shinow cloud disaster recovery service system.According to the blood disaster information management system disaster recovery features,it uses the log-based database backup software Oracle Golden Gate to achieve real-time replication of the data at both ends,using the Oracle Database Appliance all-inone at the cloud disaster recovery center for disaster recovery end-server and storage support,building data and application clouds.Both ends of the blood stations and cloud recovery center encrypt communication through the IPSec VPN’s Virtual Private Tunnel.After a disaster occurs in a blood station,the service will switch to the cloud backup center in time.According to the actual situation of the disaster,you can use the IIS reverse proxy to provide disaster recovery services in time or directly access the IP address and port number of the cloud backup center.The data recovery module uses RMAN or Expdp/Impdp for database recovery.With Oracle Golden Gate’s bidirectional synchronous replication function,the cloud disaster recovery center synchronously copies logs generated by the disaster to the blood bank database and backs the services back to the blood station.The test verifies that Oracle Golden Gate can replicate data synchronization replication consistently.At the source end,it performs the operation of 3000 bags of blood and tests the performance of the cloud backup system.The test results show that the cloud backup system has less resources and data processing speed.Oracle Golden Gate can be split by Replicat process optimization.The results show that in the same amount of data,the optimized process delay becomes smaller,can improve system performance.