针对融合iNCSI,NAS,SAN的海量网络存储系统的特点,设计了一种双机高可用元数据服务器系统,该系统不仅减少了元数据服务器瓶颈,而且可充分保证存储网络系统元数据的高可用性。通过建立连续时间马尔可夫链性能分析模型,分析结果显示双机高可用系统的可用度远优于单机单路径系统。
According to the characteristic of mass network storage system for merging iSCSI,NAS,SAN,the paper designed a dual-machine high availability system for metadata server, which not only reduces the metadata server bottleneck,but also does guarantee high availability for storage network metadata. And as shown in the performance analysis on the basis of the markovian chain model, the availability of the above dual machine high availability system is much higher than that of a single machine system with a single path.