云计算下使用策略树和商业驱动的IT变更管理

发布时间：2018-04-17 02:35

本文选题：商业驱动的IT管理(BDIM) + 云计算　；参考：《北京邮电大学》2014年硕士论文

【摘要】：云计算是一种将计算资源作为公共服务的新兴计算模式,有着使IT业发生巨变的潜能。随着越来越多的企业将云计算应用到企业管理中,云计算面临着巨大的发展前景。但同时,随着获取云计算服务的客户增多,客户的需求更为复杂多变,云计算的管理面临着巨大的挑战。在传统的ITIL十大流程中,变更管理是最重要的流程之一,而在云计算多租户的环境下,变更的需求有着多变性和复杂性的特点,而且很难制定一个全面的策略来应对所有的变更需求。如何调配变更需求,权衡成本、收益及保证服务质量的关系是云计算提供商能否获取成功的关键,也是研究的难题。针对以上的问题,本文提出一个云计算环境下的基于策略的IT管理模型,可以使得云计算提供商在保证服务质量的情况下商业利益最大化。为了更好的为商业目标服务,可将商业目标融入到云计算资源的管理。商业驱动的IT管理(BDIM)模型致力于将IT相关事件映射到商业尺度上,度量IT对商业的影响,使得IT服务管理直接能为商业目标服务。同时,由于云计算环境的多变性,因此很难设计套全面的策略来应对所有问题,往往需要多个侧重点不同的策略并存,并根据目前的系统情况来灵活的部署和执行策略。策略树是一种封装了不同策略的抽象方法,能够在系统运行中实时评估策略有效性,并且可以动态的实现策略转换,尤其适合在云计算环境的策略管理中使用。本文针对PaaS和IaaS两种服务模式提出了基于策略树的商业驱动的IT管理方法和模型。在该方法中,将实时的IT层级运行参数通过BDIM模型映射为商业指数,通过策略树层级反馈和评估机制,实时的评估当前策略对于商业的影响,并提供策略决策,实现基于策略的自管理闭环,为云计算提供商获取最大的商业利益。
[Abstract]:Cloud computing is a new computing model that uses computing resources as a public service, which has the potential to make a huge change in IT industry.With more and more enterprises applying cloud computing to enterprise management, cloud computing is facing a great development prospect.But at the same time, with the increasing number of customers to access cloud computing services, customer demand is more complex and changeable, cloud computing management is facing a huge challenge.Among the ten traditional ITIL processes, change management is one of the most important processes. In the multi-tenant environment of cloud computing, the requirements of change have the characteristics of variability and complexity.And it is difficult to develop a comprehensive strategy to respond to all change needs.How to adjust the change requirements, weigh the cost, benefit and guarantee the quality of service relationship is the key to the success of cloud computing providers, but also a difficult problem.In view of the above problems, this paper proposes a policy-based IT management model in cloud computing environment, which can maximize the business benefits of cloud computing providers under the guarantee of quality of service.In order to better serve the business objectives, we can integrate the business objectives into the management of cloud computing resources.The business-driven IT management (BDIM) model aims to map IT-related events to a commercial scale to measure the impact of IT on business, so that IT service management can serve business objectives directly.At the same time, because of the variability of cloud computing environment, it is difficult to design a set of comprehensive strategies to deal with all the problems, and often need multiple strategies with different emphasis, and flexible deployment and implementation strategies according to the current system conditions.Policy tree is an abstract method which encapsulates different policies. It can evaluate the effectiveness of policies in real time while the system is running, and it can dynamically implement policy transformation, especially suitable for policy management in cloud computing environment.This paper presents a business-driven IT management method and model based on policy tree for PaaS and IaaS service modes.In this method, the real-time operation parameters of IT level are mapped to business index by BDIM model, and the influence of current strategy on business is evaluated in real time through the feedback and evaluation mechanism of policy tree level, and the policy decision is provided.Policy-based self-management close-loop is implemented to maximize business benefits for cloud computing providers.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F272;TP393.09

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