very large refactoring
diff --git a/usb_hdd.yaml b/usb_hdd.yaml
new file mode 100644
index 0000000..59e1259
--- /dev/null
+++ b/usb_hdd.yaml
@@ -0,0 +1,24 @@
+explicit_nodes:
+    "ssh://koder@192.168.0.108::/home/koder/.ssh/id_rsa": testnode
+    # local: testnode
+
+internal:
+    var_dir_root: /tmp/perf_tests
+
+sensors:
+    # receiver_uri: udp://172.18.217.10:5699
+    receiver_uri: "udp://192.168.0.108:5699"
+    # receiver_uri: "udp://{ip}:5699"
+    roles_mapping:
+        ceph-osd: block-io
+        cinder: block-io, system-cpu
+        testnode: system-cpu, block-io
+
+tests:
+        - io:
+            cfg: wally/suits/io/io_scenario_hdd.cfg
+            params:
+                FILENAME: /media/koder/a5230078-4c27-4c3b-99aa-26148e78b2e7/xxx.bin
+                NUM_ROUNDS: 7
+logging:
+    extra_logs: 1
\ No newline at end of file