面向IMA网络文件系统的双服务器结构设计

摘要

为了提高面向IMA网络文件系统的可靠性和实时性,设计了一种双服务器结构的网络文件系统.客户优先访问主服务器,在得不到主服务器响应时,访问从服务器；主服务器在无法满足同时有多个访问请求时,把一部分的访问请求分给从服务器；主服务器和从服务器通过数据实时更新和定时检测更新,保持数据的高度一致.%In order to improve the real - time performance and reliability of the network file system for IMA system,this paper proposes a dual- server architecture of the network file system design. The user first access the master server. If users can not access the master server,it will access the slave sever. When the master server can not meet the demand, because while there are many access requests, part of the access request will be assigned to the slave sever. Master and the slave servers maintain data consistency by updating in real time and regularly checking for updates.