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    # 产品介绍 ## 什么是 KubeSphere Virtualization(KSV) **KubeSphere Virtualization**,中文名 KubeSphere 虚拟化平台,缩写为 **KSV**,是由 KubeSphere 衍生出来的全新产品,是一款轻量极简的虚拟机(VM)管理平台,支持**单节点**交付,简单易用,满足企业日常的虚拟化管理业务。 KSV 基于 Kubernetes 云原生架构,是新一代的云原生超融合产品(Cloud Native HCI)。相较于传统的虚拟化架构,如 OpenStack 等,它更轻量、更灵活,而且借助 Kubernetes 底层框架,可以实现服务自愈、快速弹性伸缩、灵活调度等能力。 ### 什么是虚拟化(Virtualization) 虚拟化是一种软件技术,可以将有限的来自于硬件资源的计算力拆分出多个相对独立的环境供给多个用户或者多个业务应用使用,举例来说,计算机是骨骼和身体,操作系统是计算机之上的大脑,在没有虚拟化技术之前,一个身体之上只能有一个大脑,从事一项工作,但有了虚拟化技术,可以有多个大脑,同时进行多项工作。 ### 什么是虚拟机(Virtual Machine) 虚拟机(Virtual Machine),缩写为 VM,通过软件虚拟化的方式,将物理硬件资源,如 CPU、内存、网络等整合,从而创建出多个可以充当完整计算机系统的虚拟环境,每个虚拟环境内模拟了整套的硬件,包括 CPU、内存、网络接口和存储器等。 通过相应的 VM 控制器,用户可以将物理硬件资源进行配置和动态调整,以供虚拟机使用。虚拟机与虚拟机之间是隔离的。 ### 为什么需要虚拟机 硬件资源的整合并提高其利用率是虚拟化技术产生以及虚拟机被使用的主要原因。 在没有虚拟机之前,一台主机在安装了操作系统并部署了相关业务应用之后,其资源利用率主要取决于操作系统消耗的资源以及应用本身被使用的负载程度,大多数情况下,会有大量的硬件资源在很长时间内是被闲置的,比如购买一台服务器,部署一个 web 服务器,运行企业的在线网站,在低峰情况下,这个网站可能只消耗了物理机 20% 的资源,而通过虚拟机,可以充分利用被闲置的硬件资源,虚拟出多个虚拟机,用一个虚拟机部署在线网站,无需在购买额外的服务器,其他的虚拟机可以运行企业所需的其他业务应用。 除此以外,通过虚拟化技术,还可以将多台主机进行资源池化,形成一个大的资源池,可以更高效合理的利用这些硬件资源。 ### 什么是超融合(Hyper-converged Infrastructure) 超融合,即超融合基础架构(Hyper-converged Infrastructure),缩写为 HCI,通过软件的方式,将硬件计算资源和存储融合在一个物理服务器中,并提供相应的虚拟化管理平台。超融合的诞生是为了满足企业 IT 快速灵活扩容的一种交付形式,通过软件、硬件打包方式将交付形式单元化,可以极大降低企业计算平台的决策周期和采购成本。 ### 什么是云原生(Cloud Native) 云原生,即 Cloud Native,是一系列软件技术、开发方法、管理方法的集合,通过这一整套完整的工具链和方法论,用户可以灵活构建适合自己企业的,满足分布式、弹性、DevOps、敏捷等需求的业务支撑系统。 云原生最基础、最核心的技术为由 Google 开源的 Kubernetes,是一种基于容器的分布式的容器管理调度框架,除此以外,大部分云原生相关的软件技术和服务都托管在云原生社区基金会(Cloud Native Community Foundation)下,缩写为 CNCF。 ### OpenStack vs. Kubernetes OpenStack 和 Kubernetes 都是非常强大的、复杂的企业级分布式计算资源管理调度平台,OpenStack 起步更早,更专注于虚拟化及虚拟机资源的管理方向,Kubernetes 更轻量,交付更灵活,基于 Docker 等云原生技术,同时,在今年,通过 kube-virt 等技术也可以进行虚拟机资源的管理。相较于 OpenStack,Kubernetes 架构更简单,同时也更符合云原生的发展趋势。 ## 产品架构 ## 产品功能快览 ## 优势场景

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