带有管理端的直接迁移,这种迁移方式是由一个管理客户端发起,管理客户端完全控制整个迁移流程,所以它必须能够且有权限访问源主机和目的主机上libvirtd的权限,因为外加一个管理客户端,所以不需要源libvirtd和目的libvirtd之间进行直接的交流,只需要按照管理客户端的指示来办事就好了。这种方式的优点是:
If the client application crashes, or otherwise loses its connection to libvirtd during the migration process, an attempt will be made to abort the migration and restart the guest CPUs on the source host. There may be scenarios where this cannot be safely done, in which cases the guest will be left paused on one or both of the hosts