4 - mkdir /home/ubuntu/cephtest/migration
5 - wget -nv -O /home/ubuntu/cephtest/migration/base.client.0.qcow2 http://download.ceph.com/qa/ubuntu-12.04.qcow2
6 - qemu-img create -f qcow2 /home/ubuntu/cephtest/migration/empty.qcow2 1G
7 - echo '{"type":"qcow","stream":{"type":"file","file_path":"/home/ubuntu/cephtest/migration/base.client.0.qcow2"}}' | rbd migration prepare --import-only --source-spec-path - client.0.0
8 - rbd migration prepare --import-only --source-spec '{"type":"qcow","stream":{"type":"file","file_path":"/home/ubuntu/cephtest/migration/empty.qcow2"}}' client.0.1
9 - rbd migration prepare --import-only --source-spec '{"type":"qcow","stream":{"type":"file","file_path":"/home/ubuntu/cephtest/migration/empty.qcow2"}}' client.0.2