host端的安装光盘
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
Prerequisites
The 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
当你成功得意的时候,最重要的是瞧得起别人。