基于框图法的网络存储系统可靠性分析

随着信息的快速增长和对数据安全要求的提高,网络存储系统的可靠性直接影响信息系统性能.重点针对网络存储系统中的设备失效问题,在分析典型网络存储系统可靠性模型的基础上,采用框图法理论提出了一种基于混联结构的网络存储系统的可靠性分析与评价方法,包括基于属性节点的系统可靠性框图描述方法、负载关联的M取值方法等.通过典型混联结构的FC-SAN系统实验,验证了该方法的有效性.该方法相对于测试等其它方法具有简单、省时、费用低等特点,因此更有利于应用于网络存储系统的方案和设备优化.

Reliability Evaluation of the Network Storage System Based on Block Diagrams

With the rapid growth of information and improving data security requirements, the reliability of network storage system directly affects the information system performances. This paper focused on network storage system's equipment failure. Based on the reliability analysis about the typical model of network storage system and the use of reliability block diagrams theory, the paper proposed a hybrid form of network storage system reliability analysis and evaluation methods, including system reliability block diagram analysis methods based on nodes attribute, M value methods with the business load. And the hybrid structure of FC-SAN systems experiment was established to verify the effectiveness of the method. As a result of this method compared to other methods of testing with a simple, time-saving, low cost,it is more conducive to application of network storage system to optimize the scheme and equipment.