In order to figure out how memory faults affect high-performance servers, this paper presents a multi-layer fault injection method for Itanium architecture computers. HMFI(Hierarchica) Memory Fault Injector) is designed and developed to inject memory faults in physical level, operating system kernel level and process level. Experimental results demonstrate the effectiveness of HMFI in evaluating the fault-tolerant properties of complex computer system.%为研究内存故障对高可用服务器的影响,针对安腾架构的计算机提出一种多层次的内存故障注入方法,设计并实现一种新的故障注入器(HMFI),通过在物理层、操作系统内核层和进程层注入内存故障,考察目标系统对内存故障的容错能力.实验结果表明,HMFI注入的内存故障能够有效验证与分析复杂计算机系统的容错性能.
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