Hi, I am trying to configure live migration of instance backed by lvm iscsi storage. I have done below mentioned config in nova.conf. [libvirt] virt_type = kvm volume_use_multipath = True live_migration_uri = qemu+ssh://nova@%s/system The live migration is being failed with below logs. 2021-03-03 07:15:51.917 706290 INFO nova.compute.manager [-] [instance: 7de891d3-c712-434c-b39f-08e512e46e83] Took 6.02 seconds for pre_live_migration on destination host kvm12-a1-khi01. 2021-03-03 07:15:52.029 706290 ERROR nova.virt.libvirt.driver [-] [instance: 7de891d3-c712-434c-b39f-08e512e46e83] Live Migration failure: operation failed: Failed to connect to remote libvirt URI qemu+ssh://nova@kvm12-a1-khi01/system: Cannot recv data: Host key verification failed.: Connection reset by peer: libvirt.libvirtError: operation failed: Failed to connect to remote libvirt URI qemu+ssh://nova@kvm12-a1-khi01/system: Cannot recv data: Host key verification failed.: Connection reset by peer 2021-03-03 07:15:52.444 706290 ERROR nova.virt.libvirt.driver [-] [instance: 7de891d3-c712-434c-b39f-08e512e46e83] Migration operation has aborted 2021-03-03 07:15:52.489 706290 INFO nova.compute.manager [-] [instance: 7de891d3-c712-434c-b39f-08e512e46e83] Swapping old allocation on dict_keys(['3e5679c8-165e-4c35-9de5-ef0d3af0f9d8']) held by migration f519f768-5a62-4f17-9ac0-1cc2c814ec3a for instance 2021-03-03 07:15:55.927 706290 WARNING nova.compute.manager [req-116cf2ef-4720-421e-9aad-75451e3deafe b95c0ad0fb9848598988b5bff99ca55b abf41db7e6dc429086713f4b46cd3655 - default default] [instance: 7de891d3-c712-434c-b39f-08e512e46e83] Received unexpected event network-vif-unplugged-df7666d6-add3-4638-98e1-14db30122c3f for instance with vm_state active and task_state None. I am able to login from host1 to host2 via ssh without password. Also I have disabled hostkey check in ssh config of nova. (~/.ssh/config) Host * StrictHostKeyChecking no UserKnownHostsFile=/dev/null I am able to connect host2 from host 1 and vice versa via virsh uri. nova@kvm10-a1-khi01:~$ virsh -c qemu+ssh://nova@kvm12-a1-khi01/system Welcome to virsh, the virtualization interactive terminal. Type: 'help' for help with commands 'quit' to quit virsh # exit No sure where i am missing something. - Ammad