oVirt平台的搭建

http://resources.ovirt.org/releases/3.2/iso/ host端的安装光盘http://www.ovirt.org/Download 相关资料第一部分、oVirt简介1、Ovirt是什么？Ovirt是一个开源的虚拟化管理平台，是RedHat 虚拟化管理平台RHEV的开源版本。 2、Ovirt的构架是什么样的？Ovirt由两部分组成：客户端ovirt-node 类似于vmware esxi，是由fedaro 16订制而成。也可以在linux系统上安装vdsm服务而得到一个ovirt客户端。管理端overt-engine 类似于 vmware vcenter，但是是基于web页面的。 3、Ovirt能做什么，不能做什么？Ovirt现在已有的功能：① 对宿主机节点的管理，支持基于数据中心，集群的管理，比较有特色的一个功能是可以管理ilo idarc等硬件管理卡；② 对虚拟机的管理，可以完成虚拟机的创建、快照、删除、基于模版的克隆等常见操作；③ 迁移，在线及离线迁移虚拟机；④ 高可用，当一台宿主机宕机，在另外一台宿主机上自动开启虚机；⑤ 宿主机、虚拟机性能查看及统计;⑥ 支持nfs,iscsi,fc等存储方式；⑦ 支持多端口的网口绑定；⑧ 提供一个命令行，可以完成图形界面的大部分功能；⑨ 活动目录集成；⑩ 提供python api接口，可以api编程； 4、和vmware相比，目前没有的功能：1）稳定目前较差，经常出现崩溃，连接出现问题；2）易用性较差，设计不人性化；3）没有cpu 内存很精细的调节限制功能；4）没有FT（Fault Tolerance）功能；5）宿主机、虚拟机性能查看及统计功能很简单，远没有vmware丰富；6）不支持分布式交换机；第二部分、Ovirt对硬件的要求PrerequisitesThe following requirements are typical for small- to medium sized installations. Note that the exact requirements of the setup depend on the specific installation, sizing and load. Please use the following requirements as guidelines:1、oVirt Engine· Minimum - Dual core server with 4 GB RAM, with 25 GB free disk space and 1 Gbps network interface.· Recommended - Dual Sockets/Quad core server with 16 GB RAM, 50 GB free disk space on multiple disk spindles and 1 Gbps network interface.
The breakdown（例外） of the server requirements are as below:o For the Fedora 18 operating system: minimum 1 GB RAM and 5 GB local disk space.o For the oVirt Engine: minimum 3 GB RAM, 3 GB local disk space and 1 Gbps network controller bandwidth.o If you wish to create an ISO domain on the Engine server, you need minimum 15 GB disk space.· The oVirt Engine must be configured to receive updates from the oVirt project"s software repository, as provided by the ovirt-release package.· A client for connecting to oVirt Engine. 2、For each Host （oVirt Node or Fedora Host）· Minimum - Dual core server, 10 GB RAM and 10 GB Storage, 1 Gbps network interface.· Recommended - Dual socket server, 16 GB RAM and 50 GB storage, two 1 Gbps network interfaces.
The breakdown of the server requirements are as below:o For each host: AMD-V or Intel VT enabled, AMD64 or Intel 64 extensions, minimum 1 GB RAM, 3 GB free storage and 1 Gbps network interface.o For virtual machines running on each host: minimum 1 GB RAM per virtual machine. 3、Storage and Networking· At least one of the supported storage types （NFS, iSCSI, FCP, Local, POSIX FS）.o For NFS storage, a valid IP address and export path is required.o For iSCSI storage, a valid IP address and target information is required.· Static IP addresses for the oVirt Engine server and for each host server.· DNS service which can resolve （forward and reverse） all the IP addresses.· An existing DHCP server which can allocate network addresses for the virtual machines.？？？？？？？？？？？Virtual Machines· Installation images for creating virtual machines, depending on which operating system you wish to use

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