diff --git a/utils/__init__.py b/utils/__init__.py
new file mode 100644
index 0000000..8e858b3
--- /dev/null
+++ b/utils/__init__.py
@@ -0,0 +1,73 @@
+import os
+import yaml
+import logging
+
+from utils import os_client
+
+logger = logging.getLogger(__name__)
+
+
+def compile_pairs(nodes):
+    result = {}
+    if len(nodes) %2 != 0:
+        nodes.pop(1)
+    pairs = list(zip(*[iter(nodes)] * 2))
+    for pair in pairs:
+        result[pair[0]+'<>'+pair[1]] = pair
+    return result
+
+
+def get_pairs():
+    config = get_configuration()
+    cmp_hosts = config.get('CMP_HOSTS') or []
+    skipped_nodes = config.get('skipped_nodes') or []
+    if skipped_nodes:
+        print(("\nNotice: {} nodes will be skipped for vm2vm test".format(
+            ",".join(skipped_nodes))))
+        logger.info("Skipping nodes {}".format(",".join(skipped_nodes)))
+    if not cmp_hosts:
+        openstack_clients = os_client.OfficialClientManager(
+            username=os.environ['OS_USERNAME'],
+            password=os.environ['OS_PASSWORD'],
+            tenant_name=os.environ['OS_PROJECT_NAME'],
+            auth_url=os.environ['OS_AUTH_URL'],
+            cert=False,
+            domain=os.environ['OS_PROJECT_DOMAIN_NAME']
+        )
+        os_actions = os_client.OSCliActions(openstack_clients)
+        nova_computes = os_actions.list_nova_computes()
+        if len(nova_computes) < 2:
+            raise BaseException(
+                "At least 2 compute hosts are needed for VM2VM test, "
+                "now: {}.".format(len(nova_computes)))
+        cmp_hosts = [n.host_name for n in nova_computes
+                     if n.host_name not in skipped_nodes]
+        if len(cmp_hosts) < 2:
+            raise BaseException(
+                "At least 2 compute hosts are needed for VM2VM test. "
+                "Cannot create a pair from {}. Please check skip list, at "
+                "least 2 computes should be tested.".format(cmp_hosts))
+        logger.info("CMP_HOSTS option is not set, using host pair from "
+                    "Nova compute list. Pair generated: {}".format(cmp_hosts))
+
+    return compile_pairs(cmp_hosts)
+
+
+def get_configuration():
+    """function returns configuration for environment
+    and for test if it's specified"""
+
+    global_config_file = os.path.join(
+        os.path.dirname(os.path.abspath(__file__)), "../global_config.yaml")
+    with open(global_config_file, 'r') as file:
+        global_config = yaml.load(file, Loader=yaml.SafeLoader)
+    for param in list(global_config.keys()):
+        if param in list(os.environ.keys()):
+            if ',' in os.environ[param]:
+                global_config[param] = []
+                for item in os.environ[param].split(','):
+                    global_config[param].append(item)
+            else:
+                global_config[param] = os.environ[param]
+
+    return global_config