KVM虚机冷迁移

  1 [root@kvm-host ~]# virsh shutdown vm01-centos6.8	#关闭需要迁移的虚机
  2 [root@kvm-host ~]# virsh list --all			#查看虚机情况

  1 [root@kvm-host ~]# virsh domblklist vm01-centos6.8	#查看虚机磁盘

  1 [root@kvm-host ~]# virsh dumpxml vm01-centos6.8 > /tmp/vm01-cloud-centos6.8.xml

  1 [root@kvm-host ~]# scp /tmp/vm01-cloud-centos6.8.xml root@172.24.8.41:/etc/libvirt/qemu

  1 [root@kvm-host ~]# scp /data/images/vm01-centos6.8.img root@172.24.8.41:/data/images/vm01-cloud-centos6.8.img

  1 [root@kvm-host-2 ~]# virsh list --all				#查看虚机列表

  1 [root@kvm-host-2 ~]# vi /etc/libvirt/qemu/vm01-cloud-centos6.8.xml
  2 ……
  3  <name>vm01-cloud-centos6.8</name>
  4   <uuid>5130c447-8f43-4f84-bc90-4f51db2023f8</uuid>		  #修改UUID
  5 ……
  6 <disk type=‘file‘ device=‘disk‘>
  7       <driver name=‘qemu‘ type=‘qcow2‘/>
  8       <source file=‘/data/images/vm01-cloud-centos6.8.img‘/>  #修改对应的磁盘路径及名字
  9       <target dev=‘vda‘ bus=‘virtio‘/>
 10       <address type=‘pci‘ domain=‘0x0000‘ bus=‘0x00‘ slot=‘0x04‘ function=‘0x0‘/>
 11     </disk>
 12 ……
 13 <mac address=‘52:54:00:16:d3:96‘/>				  #修改对应的mac地址

  1 [root@kvm-host-2 ~]# virsh define /etc/libvirt/qemu/vm01-cloud-centos6.8.xml

  1 [root@kvm-host-2 ~]# virsh list --all

  1 [root@kvm-host-2 ~]# virsh list --all