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