Research On Remote Data Disaster Recovery System Based On Log Mechanism

With the rapid development of data informationization,data has become the mostimportant resource in all fields.Data information’s security or not relationship with theenterprise’s survival and development.So remote disaster recovery technology becomes thefocus of current information storage and information security field.Although remote datadisaster recovery technology has been extensively applied in many fields at the present,mosttraditional remote data disaster recovery technologies have low efficiency in data transmissionwith high costs and also are restricted to application service or operating system.In order to solve the problems,a remote data disaster recovery technology based on thelog mechanism is proposed in this paper.The system implements the local and remote logdisaster recovery module,which independent implement disaster recovering and theneliminate the influence of application service performance and non-restricted to OS andapplication service.it adopts the current mainstream network storage technology iSCSI,theiSCSI uses the TCP/IP protocol to establish and manage the IP connection with the IP networkservers and storage equipment which implement remote data recovery with lowcosts.Meanswhile,the model refer traditional log idea to optimize write operation and filter themeaningless overriding write operation,which realizes effective transmission of remote dataand saves network resources.Finally,through analyzing the characteristic of the system,obtaining the key factors ofinfluence properties of remote data tolerant system is the size of atomic command.Throughthe prototype experiments and analyzing the results,effective dividing the time intervalswhich determining the size of atomic command.