KVM虛擬機(jī)的創(chuàng)建、管理與遷移

1、ram=1024#分配內(nèi)存大小，MBkvm虛擬機(jī)管理、環(huán)境rolehostnameipOSkvm_servertarget0/24rhel6.0_x64vir_guest1node44/24rhel5.5_i386vir_guest2node55/24rhel5.5_i386managermanager3/24rhel5.5_i386ESXiESXi51/24ESXi3.5二、安裝kvmroottarget#yuminstall-yqemu-kvm.x86_64qemu-kvm-tools.x86_64#安裝kvm內(nèi)核roottarget#yuminstalllibvirt.x86_64lib

2、virt-cim.x86_64libvirtclient.x86_64libvirtjava.noarchlibvirtpython.x86_64#安裝virt管理工具roottarget#modprobekvm#加載kvm內(nèi)核roottarget#modprobekvm-intel#intelcpu加I載kvm-intel內(nèi)核，要支持全虛擬化，必須開(kāi)啟；要求cpu支持，通過(guò)bios可設(shè)置。roottarget#modprobekvm-amd#amdcpu加I載kvm-intelroottarget#modprobe-ls|grepkvm#查看內(nèi)核是否開(kāi)啟kernel/arch/x86/kvm

3、/kvm.kokernel/arch/x86/kvm/kvm-intel.kokernel/arch/x86/kvm/kvm-amd.koroottarget#modprobe-ls|grepkvm-intelkernel/arch/x86/kvm/kvm-intel.ko三、安裝guest虛擬機(jī)1、直接通過(guò)virt-manager安裝、管理虛擬機(jī)（略）2、通過(guò)命令行安裝guest虛擬機(jī)roottarget#yuminstallvirt-viewer#開(kāi)啟圖形控制臺(tái)安裝虛擬客戶機(jī)需要，roottarget#virt-install#安裝選項(xiàng)可用virt-install-help查看-namen

4、ode4#虛擬機(jī)名arch=x86_64#模擬的CPU構(gòu)架vcpus=l#配置虛擬機(jī)的vcpu數(shù)目checkcpu#檢查確定vcpu是否超過(guò)物理CPU數(shù)目，如果超過(guò)則發(fā)出警告。ostype=linux#要安裝的操作系統(tǒng)類型，例如：linux、unix、windowsosvariant二rhel5#操作系統(tǒng)版本，如:fedora6,rhel5,solarislO,win2kdiskpath=/virhost/node7.img,device二disk,bus二virtio,size=20,sparse二true#虛擬機(jī)所用磁盤(pán)或鏡像文件，size大小Gbridge二brO#指定網(wǎng)絡(luò)，采用透明網(wǎng)橋

5、noautoconsole#不自動(dòng)開(kāi)啟控制臺(tái)roottarget#virshstartnode4#開(kāi)機(jī)roottarget#virshcreate/etc/libvirt/qemu/node4.xml#直接通過(guò)主機(jī)配置文檔pxe#網(wǎng)絡(luò)安裝四、利用virsh對(duì)虛擬機(jī)管理1、開(kāi)關(guān)機(jī)啟動(dòng)主機(jī)roottarget#virshshutdownnode4#關(guān)機(jī)roottarget#virshdestroynode4#強(qiáng)制關(guān)閉電源roottarget#virshlistall#查看虛擬機(jī)狀態(tài)狀態(tài)Id名稱18node4runningnode5關(guān)閉win8關(guān)閉2、添加刪除虛擬機(jī)roottarget#virshd

6、efine/etc/libvirt/qemu/node5.xml#根據(jù)主機(jī)配置文檔添加虛擬機(jī)roottarget#virshlistall#node5已經(jīng)添加Id名稱狀態(tài)18node4running-node5關(guān)閉-win8關(guān)閉roottarget#virshundefinenode5#移除虛擬機(jī)roottarget#ls/etc/libvirt/qemunetworksnode4.xmlwin8.xmlroottarget#virshlistall#node5已經(jīng)被移除Id名稱狀態(tài)18node4running-win8關(guān)閉3、遠(yuǎn)程管理虛擬機(jī)（qemu+ssh連接）roottarget#yum

7、installvirt-viewerroottarget#exportDISPLAY=8:0.0roottarget#virt-viewer-cqemu/systemnode4#本地管理虛擬機(jī)，system：獲取system權(quán)限，注意qemu后是三個(gè)/rootmanager#virt-viewer-cqemu+ssh:/root0/systemnode4#遠(yuǎn)程linux通過(guò)virt-viewer+ssh管理虛擬機(jī)Xlib:extensionRANDRmissingondisplay8:0.0.root0spassword:root0spassword:#會(huì)彈出virt-viwer的gtk管理界

8、面4、使用已存在的虛擬機(jī)配置文檔安裝新的虛擬機(jī)roottarget#qemu-imgcreate-fqcow2/virhost/kvm_node/node6.img20G#為新建虛擬機(jī)生產(chǎn)磁盤(pán)鏡像文件roottarget#virshlistId名稱狀態(tài)running18node4roottarget#virshdumpxmlnode4/etc/libvirt/qemu/node6.xml#導(dǎo)出虛擬機(jī)node6的硬件配置信息為/etc/libvirt/qemu/node6.xmlroottarget#vim/etc/libvirt/qemu/node6.xmldomaintype二kvmid二2

9、0#修改node6的id號(hào)namenode6/name#虛擬機(jī)node6的nameuuid4b7e91eb-6521-c2c6-cc64-clba72707fc7/uuid#uuid必須修改，否則會(huì)和node4的沖突memory524288/memorycurrentMemory524288/currentMemoryvcpul/vcputypearch=x86_64machine二rhel5.4.0hvm/typebootdev=network/featuresacpi/apic/pae/featureson_poweroffdestroy/on_poweroffon_rebootresta

10、rt/on_rebooton_crashrestart/on_crashemulator/usr/libexec/qemu-kvm/emulatordisktype二filedevice二diskdrivername=qemutype=qcow2cache二none/sourcefile=/virhost/node4.img/謝旨定新虛擬機(jī)的硬盤(pán)文件targetdev=vdabus=virtio/interfacetype二bridgemacaddress二54:52:00:69:d5:c7/sourcebridge二brO/targetdev=vnetO/modeltype=virtio/i

11、nterfaceinterfacetype二bridgemacaddress二54:52:00:69:d5:d7/sourcebridge二brO/targetdev=vnetl/modeltype=virtio/serialtype=ptysourcepath=/dev/pts/4/targetport二0/serialconsoletype=ptytty二/dev/pts/4sourcepath=/dev/pts/4/targetport二0/consoleinputtype二mousebus二ps2/graphicstype=vncport二5900autoport二yeskeymap二

12、en-us/domainroottarget#virshdefine/etc/libvirt/qemu/node6.xml#使用虛擬描述文檔建立虛擬機(jī)，可用virsheditnode6修改node6的配置文件roottarget#virshstartnode6#啟動(dòng)虛擬機(jī)5為虛擬機(jī)開(kāi)啟vncroottarget#virsheditnode4#編輯node4的配置文件；不建議直接通過(guò)vimnode4.xml修改。401Unauthorized*HEAD HYPERLINK https:/192.168 51/folder/tserver21/RHEL4.6-f

13、lat.vmdk?dcPath=ha-datacenter&dsName=ESX35-bak%3Astorage1=200OK*GET HYPERLINK 51/folder/tserver21/RHEL4.6-flat.vmdk?dcPath=ha-datacenter&d 51/folder/tserver21/RHEL4.6-flat.vmdk?dcPath=ha-datacenter&dsName=ESX35-bak%3Astorage1=200OK(2084s)unknownfilesystem/dev/hdaunknownfilesystem/dev/fd0virt-v2v:Ins

14、tallationfailedbecausethefollowingfilesreferencedintheconfigurationfilearerequired,butmissing:rhel/4/kernel-smp-2.6.9-89.EL.i686.rpmvirt-v2v:非virtio驅(qū)動(dòng)程序配置的tserver21#所有選項(xiàng)可通過(guò)配置文件/etc/virt-v2v.conf來(lái)指定#-op:指定用于轉(zhuǎn)換后的存儲(chǔ)域(pool)，virhost#-b:指定網(wǎng)絡(luò)為網(wǎng)橋br0#-ic:指定要轉(zhuǎn)換的源地址roottargetkvm_node#virshlist-allId名稱狀態(tài)1node4running-node5關(guān)閉-tserver21關(guān)閉-win8關(guān)閉roottargetkvm_node#virshstarttserver21KVM到KVM遷移roottargetkvm_node#virt-v2v-icqemu+ssh:/79/system-opvirhost-bbr0node6root79spassword:root79spassword:unknownfilesystemlabelSWAPvda3virtv2v: