ESXI 遷移至KVM (V2V遷移)

慘綠少年發表於2018-04-12

1.1.1 ESXI將虛擬機器匯出

 

   匯出ova模板

   將匯出的ova模板匯入到KVM環境中。

1.1.2 配置KVM環境

詳情參考：http://www.cnblogs.com/clsn/p/8366251.html

安裝所需要的元件

[root@clsn7 ~]# yum install libvirt* virt-* qemu-kvm* -y

配置橋接網路卡

[root@clsn7 ~]# virsh iface-bridge eth1 br1 
使用附加裝置 br1 生成橋接 eth1 失敗
已啟動橋接介面 br1

1.1.3 匯入虛擬機器

啟動kvm管理程式，並設定開機自啟動

[root@clsn7 ~]# systemctl start libvirtd.service
[root@clsn7 ~]# systemctl enable libvirtd.service

   建立虛擬機器存放目錄

[root@clsn7 ~]# virt-v2v -i ova centos-dev-test01-v2v.ova -o local -os /vmhost/dev/dev-test01  -of qcow2 
[   0.0] Opening the source -i ova centos-dev-test01-v2v.ova
virt-v2v: warning: making OVA directory public readable to work around 
libvirt bug https://bugzilla.redhat.com/1045069
[  23.1] Creating an overlay to protect the source from being modified
[  23.4] Initializing the target -o local -os /vmhost/dev/dev-test01
[  23.4] Opening the overlay
[  41.4] Inspecting the overlay
[  57.5] Checking for sufficient free disk space in the guest
[  57.5] Estimating space required on target for each disk
[  57.5] Converting CentOS release 6.9 (Final) to run on KVM
virt-v2v: This guest has virtio drivers installed.
[ 178.6] Mapping filesystem data to avoid copying unused and blank areas
[ 178.9] Closing the overlay
[ 179.4] Checking if the guest needs BIOS or UEFI to boot
[ 179.4] Assigning disks to buses
[ 179.4] Copying disk 1/1 to /vmhost/dev/dev-test01/centos-dev-test01-v2v-sda (qcow2)
    (100.00/100%)
[ 216.1] Creating output metadata
[ 216.1] Finishing off

匯入完成後在 /vmhost/dev/dev-test01 目錄下會生成檔案

[root@clsn7 dev-test01]# pwd
/vmhost/dev/dev-test01
[root@clsn7 dev-test01]# ls
centos-dev-test01-v2v-sda  centos-dev-test01-v2v.xml

修改網路卡配置

　　修改網路卡source network 為橋接

　　修改網路卡使用virtio

[root@clsn7 dev-test01]# cat centos-dev-test01-v2v.xml 
<?xml version='1.0' encoding='utf-8'?>
<domain type='kvm'>
  <!-- generated by virt-v2v 1.36.3rhel=7,release=6.el7_4.3,libvirt -->
  <name>centos-dev-test01-v2v</name>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <vcpu>1</vcpu>
  <features>
    <acpi/>
    <apic/>
  </features>
  <os>
    <type arch='x86_64'>hvm</type>
  </os>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/vmhost/dev/dev-test01/centos-dev-test01-v2v-sda'/>
      <target dev='vda' bus='virtio'/>
    </disk>
    <disk device='cdrom' type='file'>
      <driver name='qemu' type='raw'/>
      <target dev='hda' bus='ide'/>
    </disk>
    <disk device='floppy' type='file'>
      <driver name='qemu' type='raw'/>
      <target dev='fda'/>
    </disk>
    <interface type='bridge'>
      <source bridge='br1'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <video>
      <model type='qxl' ram='65536' heads='1'/>
    </video>
    <graphics type='vnc' autoport='yes' port='-1'/>
    <input type='tablet' bus='usb'/>
    <input type='mouse' bus='ps2'/>
    <console type='pty'/>
  </devices>
</domain>

1.1.4 啟動虛擬機器

匯入主機

[root@clsn7 dev-test01]# virsh  define centos-dev-test01-v2v.xml  
定義域 centos-dev-test01-v2v（從 centos-dev-test01-v2v.xml）

檢視主機列表

[root@clsn7 dev-test01]#  virsh list --all 
 Id    名稱                         狀態
----------------------------------------------------
 -     centos-dev-test01-v2v          關閉

啟動主機

[root@clsn7 dev-test01]#  virsh start centos-dev-test01-v2v 
域 centos-dev-test01-v2v 已開始

1.1.5 測試可用性

登陸遷移後的虛擬機器測試

[root@clsn7 ~]# ssh root@192.168.19.123
The authenticity of host '192.168.19.123 (192.168.19.123)' can't be established.
RSA key fingerprint is SHA256:iRmghFzgRIJy5+v8p4lqi8DyUG8F0hXR/qNdDZ2J6RY.
RSA key fingerprint is MD5:37:b8:56:3b:b7:85:fa:cb:d9:55:a7:44:d5:de:f8:d9.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.19.123' (RSA) to the list of known hosts.
root@192.168.19.123's password: 
Last login: Mon Mar  5 10:30:02 2018 from 192.168.19.9
[root@dev-test01 ~]# hostname  -I
192.168.19.123

　　設定虛擬機器開機自啟動。

[root@clsn7 ~]# virsh autostart centos-dev-test01-v2v 
域 centos-dev-test01-v2v標記為自動開始

   至此一臺機器的遷移完成，後續按照相同的方式將其他的虛擬機器進行遷移即可。

 

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