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。
