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oVirt平台的搭建

日期:2017/2/28 14:49:11   编辑:Linux教程

http://resources.ovirt.org/releases/3.2/iso/ host端的安裝光盤

http://www.ovirt.org/Download 相關資料

第一部分、oVirt簡介

1、Ovirt是什麼?

Ovirt是一個開源的虛擬化管理平台,是RedHat 虛擬化管理平台RHEV的開源版本。

2、Ovirt的構架是什麼樣的?

Ovirt由兩部分組成:

客戶端ovirt-node 類似於vmware esxi,是由fedaro 16訂制而成。也可以在linux系統上安裝vdsm服務而得到一個ovirt客戶端。

管理端overt-engine 類似於 vmware vcenter,但是是基於web頁面的。

3、Ovirt能做什麼,不能做什麼?

Ovirt現在已有的功能:

① 對宿主機節點的管理,支持基於數據中心,集群的管理,比較有特色的一個功能是可以管理ilo idarc等硬件管理卡;

② 對虛擬機的管理,可以完成虛擬機的創建、快照、刪除、基於模版的克隆等常見操作;

③ 遷移,在線及離線遷移虛擬機;

④ 高可用,當一台宿主機宕機,在另外一台宿主機上自動開啟虛機;

⑤ 宿主機、虛擬機性能查看及統計;

⑥ 支持nfs,iscsi,fc等存儲方式;

⑦ 支持多端口的網口綁定;

⑧ 提供一個命令行,可以完成圖形界面的大部分功能;

⑨ 活動目錄集成;

⑩ 提供python api接口,可以api編程;

4、和vmware相比,目前沒有的功能:

1) 穩定目前較差,經常出現崩潰,連接出現問題;

2) 易用性較差,設計不人性化;

3) 沒有cpu 內存很精細的調節限制功能;

4) 沒有FT(Fault Tolerance)功能;

5) 宿主機、虛擬機性能查看及統計功能很簡單,遠沒有vmware豐富;

6) 不支持分布式交換機;

第二部分、Ovirt對硬件的要求

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

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