• 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。

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  • 原文地址:https://www.cnblogs.com/clsn/p/8510670.html
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