1{"execute": "blockdev-add", "arguments": {"driver": "raw", "file": {"driver": "nbd", "reconnect-delay": 10, "server": {"path": "TEST_DIR/PID-nbd-sock", "type": "unix"}}, "node-name": "backup0"}} 2{"return": {}} 3{"execute": "blockdev-backup", "arguments": {"device": "drive0", "speed": 1048576, "sync": "full", "target": "backup0"}} 4{"return": {}} 5Backup job is started 6Kill NBD server 7Backup job is still in progress 8{"execute": "block-job-set-speed", "arguments": {"device": "drive0", "speed": 0}} 9{"return": {}} 10Start NBD server 11Backup completed: 5242880 12{"execute": "blockdev-del", "arguments": {"node-name": "backup0"}} 13{"return": {}} 14