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【速搜问答】ESXi是什么

问答 admin 2年前 (2020-08-27) 736次浏览 已收录 0个评论

汉英对照:
Chinese-English Translation:

ESXi专为运行虚拟机、最大限度降低配置要求和简化部署而设计。只需几分钟时间,客户便可完成从安装到运行虚拟机的全过程,特别是在下载并安装预配置虚拟设备的时候。

Esxi is designed to run virtual machines, minimize configuration requirements, and simplify deployment. In just a few minutes, customers can complete the whole process from installation to running virtual machines, especially when downloading and installing pre configured virtual devices.

ESXi 专为运行虚拟机、最大限度降低配置要求和简化部署而设计。只需几分钟时间,客户便可完成从安装到运行虚拟机的全过程,特别是在下载并安装预配置虚拟设备的时候。

Esxi is designed to run virtual machines, minimize configuration requirements, and simplify deployment. In just a few minutes, customers can complete the whole process from installation to running virtual machines, especially when downloading and installing pre configured virtual devices.

在 VMware Virtual Appliance Marketplace 上有 800 多款为 VMware hypervisor 创建的虚拟设备,如今,ESXi 已经实现了与 Virtual Appliance Marketplace 的直接整合,使用户能够即刻下载并运行虚拟设备。这为即插即用型软件的交付与安装提供了一种全新和极其简化的方式。

There are more than 800 virtual devices created for VMware hypervisor on VMware virtual appliance marketplace. Today, esxi has realized direct integration with virtual appliance marketplace, enabling users to download and run virtual devices instantly. This provides a new and extremely simplified way to deliver and install plug and play software.

体系结构

Architecture

VMware vSphere 的虚拟化管理程序体系结构在虚拟基础架构的管理中起关键作用。 2001 年推出的裸机 ESX 体系结构大幅增强了性能和可靠性,客户可借此将虚拟化的优势扩展到他们的关键任务应用上。 新的 ESXi 体系结构去除了基于 Linux 的服务控制台,这代表着可靠性和虚拟化管理向前发生了类似的飞跃。 新的 vSphere ESXi 体系结构的大小不足 ESX 的 5%,从安全、部署和配置以及日常管理等方面改进了虚拟化管理程序的管理。

VMware vSphere’s virtualization hypervisor architecture plays a key role in the management of virtual infrastructure. With the introduction of the bare metal UNIX architecture in 2001, customers can extend the benefits of virtualization to their mission critical applications. The new esxi architecture removes the Linux based service console, which represents a similar leap forward in reliability and virtualization management. The size of the new vSphere esxi architecture is less than 5% of the size of Aix. It improves the management of virtualization hypervisor from the aspects of security, deployment and configuration, and daily management.

提高可靠性和安全性

Improve reliability and safety

vSphere 5.0 之前的版本中提供的 ESX 体系结构依赖基于 Linux 的控制台操作系统 (COS) 来实现可维护

The UNIX architecture provided in vSphere before 5.0 relies on the Linux based console operating system (COS) for maintainability

性和基于代理的合作伙伴集成。 在独立于操作系统的新 ESXi 体系结构中,去除了大约 2 GB 的 COS,并直接在核心 VMkernel 中实现了必备的管理功能。 去除 COS 使 vSphere ESXi 虚拟化管理程序的安装占用空间急剧减小到约 150 MB,并因消除了与通用操作系统相关的安全漏洞而提高了安全性和可靠性。

And agent-based partner integration. In the new operating system independent esxi architecture, about 2 GB of COS is removed and the necessary management functions are implemented directly in the core vmkernel. The removal of COS reduces the installation space of vSphere esxi virtualization manager to about 150 MB, and improves the security and reliability by eliminating the security vulnerabilities related to the general operating system.

简化部署和配置

Simplify deployment and configuration

新的 ESXi 体系结构的配置项要少得多,因此可以极大地简化部署和配置,并且更容易保持一致性。

The new esxi architecture has much fewer configuration items, so it greatly simplifies deployment and configuration, and makes it easier to maintain consistency.

减少管理开销

Reduce management overhead

ESXi 体系结构采用基于 API 的合作伙伴集成模型,因此不再需要安装和管理第三方管理代理。 利用远程命令行脚本编写环境(例如 vCLI 或 PowerCLI),可以自动执行日常任务。

Esxi architecture adopts the API based partner integration model, so it is no longer necessary to install and manage third-party management agents. Using a remote command-line scripting environment, such as vcli or powercli, daily tasks can be automatically performed.

简化程序的修补和更新

Simplify program patching and updating

简化虚拟化管理程序的修补和更新由于占用空间小并且组件数量有限,ESXi 体系结构所需的补丁程序比早期版本少得多,从而缩短了维护时段,并减少了安全漏洞。 在其生命周期中,ESXi 体系结构所需的补丁程序约为与 COS 一起运行的 ESX 虚拟化管理程序的 1/10。

Simplify patch and update of virtualization hypervisor due to small footprint and limited number of components, esxi architecture requires much fewer patches than previous versions, which shortens maintenance windows and reduces security vulnerabilities. In its life cycle, the required patches for the esxi architecture are about one tenth of the number of patches that the AIX virtualization hypervisor runs with cos.

安装设置

Installation settings

在服务器上安装 ESXi 主机,vSphere 提供了几种方法:交互式、脚本、Auto Deploy 以及基于 CLI。

To install the esxi host on the server, vSphere provides several methods: interactive, scripting, auto deploy, and cli based.

交互式安装提供了传统的第一人称安装向导。交互式安装程序从网络、CD、DVD 或者 USB 设备引导,然后通过提示信息与 IT 技术人员进行交互。安装程序创建并格式化分区然后安装 ESXi 引导镜像。该方法通常需要占用 IT 员工大量的时间及注意力,因此最适合一次性安装或者只有几个系统的小规模部署。

Interactive installation provides a traditional first person installation wizard. The interactive installation program booted from a network, CD, DVD, or USB device, and then interacted with it technicians through prompt messages. Setup creates and formats the partition and then installs the esxi boot image. This method usually requires a lot of time and attention of IT staff, so it is most suitable for one-time installation or small-scale deployment with only a few systems.

脚本化安装使用预定义的配置设置列表。只要安装脚本以及安装程序可以通过磁盘、网络、CD/DVD、USB 或者其他适用介质访问,那么几乎不需要人为干预就能够同时进行大量的安装。然而使用同一脚本将导致被安装的系统完全相同。因此脚本往往最适合用于部署大量完全相同的 ESXi 主机。

Scripted installation uses a predefined list of configuration settings. As long as the installation script and installation program can be accessed through disk, network, CD / DVD, USB or other suitable media, a large number of installations can be carried out at the same time with little human intervention. However, using the same script will result in exactly the same system being installed. Therefore, scripts are often best used to deploy a large number of identical esxi hosts.

vSphere Auto Deploy与脚本类似,它提供了一个向导,技术人员能够明确定义数百台物理主机的 ESXi 配置及配置文件。Auto Deploy 主要是一款网络引导工具,内容由 Auto Deploy 服务器提供(而非将内容存储在将要安装的单个主机系统中)。

Similar to scripts, vSphere auto deploy provides a wizard that enables technicians to clearly define the esxi configuration and configuration files for hundreds of physical hosts. Auto deploy is primarily a network boot tool, and the content is provided by the auto deploy server (rather than storing the content in a single host system to be installed).

通过PowerShell“镜像构建器”命令集定制安装 ESXi。在大多数情况下,命令行选项被用于创建 ESXi 镜像升级或者补丁——进行日常维护。通过将新镜像写入 DVD 进行分发、部署,或者通过自动化分发机制比如 Auto Deploy。

Customize the installation of esxi through the PowerShell mirror builder command set. In most cases, command line options are used to create esxi image upgrades or patches – for routine maintenance. The new image can be distributed and deployed by writing the new image to a DVD, or through an automated distribution mechanism such as auto deploy.

组织必须事先投入时间精力在线下实验室或者不会影响实际生产活动的有限生产环境中对安装程序进行测试。事先测试允许 IT 专业人员改进安装/升级过程,评估任何改变的影响,建立对比基线,解决任何潜在的错误或者疏忽,避免数据中心出现意想不到的破坏或宕机。

The organization must invest time and effort in testing the installation program in an offline laboratory or in a limited production environment that does not affect actual production activities. Pre testing allows IT professionals to improve the installation / upgrade process, assess the impact of any changes, establish a baseline comparison, address any potential errors or omissions, and avoid unexpected disruption or downtime in the data center.


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