信息系统硬件资源需求测算方法

摘要

As the supporting infrastructure of company information business,accurate estimation of information system hardware resources has very important significances for construction,operation and expansion of information system.At present,the major method of measuring the hardware resource capacity of information system includes TPC,SPEC,SAP benchmark,Linpack,RPE2,etc..Our research shows that these methods have certain generality,but in response to the actual performance index system and other aspects exist some deficiencies,leading enterprises generally lack of suitable capacity of the hardware resource assessment and allocation method in the process of the construction of information system,resulting in information construction cost increase or waste of resources.To solve this problem,through the performance test of the actual information system,based on the measured data,the analysis of the key parameters by fitting method and grey correlation method on the hardware resources of the system capacity,capacity building hardware resources evaluation and calculation model to quantify the measurement more accurate demand for resources and performance index.In this way,the modeling is obtained.The example shows that the model is correct and effective and it has a certain value in engineering.Using the method combined with the actual situation of enterprise information system,to establish the standard for the enterprise's own characteristics.Help enterprises to determine the selection of hardware procurement,reduce procurement costs:that is not wasted and can meet business needs.%信息系统硬件资源作为支撑企业信息业务的基础设施,其容量的准确测算对于信息系统的建设、运行以及扩容具有重要意义;目前信息系统硬件资源容量测算方法主要有TPC,SPEC,SAP基准测试,Linpack以及RPE2等;研究表明,这些方法有一定的通用性,但在反映系统运行的实际性能指标等方面仍有不足,导致企业在信息系统建设过程中普遍缺乏合适的硬件资源容量评估与配置方法,造成信息化建设成本增高或资源浪费;为解决这一问题,通过对实际信息系统进行性能测试,基于实测数据,运用拟合方法和灰色关联方法对系统的硬件资源容量的关键参数进行分析,建立硬件资源容量评估与测算模型,从而对资源需求和性能指标进行较为准确的量化测算;算例表明,所建立的模型正确有效,具有一定的工程应用价值;运用该方法结合企业信息系统实际,建立适合企业自身特点的测算标准,帮助企业在硬件资源配置中明确需求,确定选型,降低采购成本,达到避免浪费的同时满足业务需求的目标.