ESXI 迁移至KVM (V2V迁移)

1.1.1 ESXI将虚拟机导出

 

   导出ova模板

   将导出的ova模板导入到KVM环境中。

1.1.2 配置KVM环境

详情参考：http://www.cnblogs.com/clsn/p/8366251.html

安装所需要的组件

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

配置桥接网卡

[root@clsn7 ~]# virsh iface-bridge eth1 br1 
使用附加设备 br1 生成桥接 eth1 失败
已启动桥接接口 br1

1.1.3 导入虚拟机

启动kvm管理程序，并设置开机自启动

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

   创建虚拟机存放目录

[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

导入完成后在 /vmhost/dev/dev-test01 目录下会生成文件

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

修改网卡配置

　　修改网卡source network 为桥接

　　修改网卡使用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 启动虚拟机

导入主机

[root@clsn7 dev-test01]# virsh
define centos-dev-test01-v2v.xml

定义域 centos-dev-test01-v2v（从 centos-dev-test01-v2v.xml）

查看主机列表

[root@clsn7 dev-test01]#
virsh list --all 
 Id
名称
状态
----------------------------------------------------
-
centos-dev-test01-v2v
关闭

启动主机

[root@clsn7 dev-test01]#
virsh start centos-dev-test01-v2v 
域 centos-dev-test01-v2v 已开始

1.1.5 测试可用性

登陆迁移后的虚拟机测试

[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

　　设置虚拟机开机自启动。

[root@clsn7 ~]# virsh autostart centos-dev-test01-v2v 
域 centos-dev-test01-v2v标记为自动开始

   至此一台机器的迁移完成，后续按照相同的方式将其他的虚拟机进行迁移即可。