Remote replication mechanism with multi-volume data consistency guarantee
Leijie Zeng · Jisuanji yingyong yanjiu · 2008
This paper proposed a remote replication mechanism which could guarantee the consistency of data in multi-volume by leveraging the regulations of transaction processing in the database management system.The system could take several correlated updates in multiple volumes at the primary site as an atomic event,and replicated it to the secondary site.In addition,the paper analyzed the key techniques in this mechanism,such as data packing,policy of fault recovery,I/O merging,and discussed the implementation.With this mechanism,the consistency and availability of data could be guaranteed in a group of volumes which had relevancy and the relevancy had to be maintained during the replication operation.This mechanism can be used to solve the mass data replication problem in a storage system at the block level(including physical and logical level).