In 1998, VMware figured out how to virtualize the x86 platform, once thought to be impossible, and created the market for x86 virtualization. The solution was a combination of binary translation and direct execution on the processor that allowed multiple guest OSes to run in full isolation on the same computer with readily affordable virtualization overhead. The savings that tens of thousands of companies have generated from the deployment of this technology is further driving the rapid adoption of virtualized computing from the desktop to the data center. As new vendors enter the space and attempt to differentiate their products, many are creating confusion with their marketing claims and terminology. For example, while hardware assist is a valuable technique that will mature and expand the envelope of workloads that can be virtualized, paravirtualization is not an entirely new technology that offers an “order of magnitude” greater performance. While this is a complex and rapidly evolving space, the technologies employed can be readily explained to help companies understand their options and choose a path forward. This white paper attempts to clarify the various techniques used to virtualize x86 hardware, the strengths and weaknesses of each, and VMware’s community approach to develop and employ the most effective of the emerging virtualization techniques. Figure 1 provides a summary timeline of x86 virtualization technologies from VMware’s binary translation to the recent application of kernel paravirtualization and hardware-assisted virtualization.

思杰桌面虚拟化资料

虚拟化识别USB

H3C CAS3.0产品介绍V1.0.pdf

云计算资料

• 云虚拟化背景介绍 • 云虚拟化的安全探索 • QEMU结构简介 • Fuzzer的制作 • 发现的安全问题 • 安全研究展望和企业Hypervisor开发安全思考

citrix xenserver 8.2

本书系统阐述了当今信息产业界最受关注的两项新技术——虚拟化与云计算。云计算的目标是将各种IT资源以服务的方式通过互联网交付给用户。计算资源、存储资源、软件开发、系统测试、系统维护和各种丰富的应用服务，都将像水和电一样方便地被使用，并可按量计费。虚拟化实现了IT资源的逻辑抽象和统一表示，在大规模数据中心管理和解决方案交付方面发挥着巨大的作用，是支撑云计算伟大构想的最重要的技术基石。本书以在数据中心采用服务器虚拟化技术构建云计算平台为主题，全面地勾画出虚拟化与云计算的产生背景、发展现状和关键技术等。本书体系完整，内容丰富，有助于广大读者理解信息产业今后发展的大脉络。

一 、VMware vSphere部署的前期规划要点 1、vSphere的优点 (略) 2如何利用现在的设备架构虚拟化环境 在虚拟化过程中，用户大多会考虑目前现有的服务器、存储、交换机等基础设备是否可以使用，这需要根据服务器、存储的性能以及参数综合考虑。 如果是近一、两年新购买的服务器，则考虑将这些服务器整合、扩充，用做虚拟化主机，一般来说大多数标配不高的服务器都能扩充到很高的配置。例如，IBM 3850 X6服务器最大可以扩充到4个CPU、1.5TB内存，以CPU为例，IBM 3850 X6出厂标配2个CPU，这CPU可以是6核、8核，如果现有多台IBM 3850 X6服务器(例如2台或更多

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