diff --git a/tempest/api/compute/admin/test_servers_on_multinodes.py b/tempest/api/compute/admin/test_servers_on_multinodes.py
index 18c974a..d32a5b4 100644
--- a/tempest/api/compute/admin/test_servers_on_multinodes.py
+++ b/tempest/api/compute/admin/test_servers_on_multinodes.py
@@ -43,6 +43,28 @@
         return cls.os_admin.servers_client.show_server(
             server_id)['server']['OS-EXT-SRV-ATTR:host']
 
+    def _create_servers_with_group(self, policy):
+        group_id = self.create_test_server_group(policy=[policy])['id']
+        hints = {'group': group_id}
+        reservation_id = self.create_test_server(
+            scheduler_hints=hints, wait_until='ACTIVE', min_count=2,
+            return_reservation_id=True)['reservation_id']
+
+        # Get the servers using the reservation_id.
+        servers = self.servers_client.list_servers(
+            detail=True, reservation_id=reservation_id)['servers']
+        self.assertEqual(2, len(servers))
+
+        # Assert the servers are in the group.
+        server_group = self.server_groups_client.show_server_group(
+            group_id)['server_group']
+        hosts = {}
+        for server in servers:
+            self.assertIn(server['id'], server_group['members'])
+            hosts[server['id']] = self._get_host(server['id'])
+
+        return hosts
+
     @decorators.idempotent_id('26a9d5df-6890-45f2-abc4-a659290cb130')
     @testtools.skipUnless(
         compute.is_scheduler_filter_enabled("SameHostFilter"),
@@ -87,28 +109,8 @@
         Creates two servers in an anti-affinity server group and
         asserts the servers are in the group and on different hosts.
         """
-        group_id = self.create_test_server_group(
-            policy=['anti-affinity'])['id']
-        hints = {'group': group_id}
-        reservation_id = self.create_test_server(
-            scheduler_hints=hints, wait_until='ACTIVE', min_count=2,
-            return_reservation_id=True)['reservation_id']
-
-        # Get the servers using the reservation_id.
-        servers = self.servers_client.list_servers(
-            detail=True, reservation_id=reservation_id)['servers']
-        self.assertEqual(2, len(servers))
-
-        # Assert the servers are in the group.
-        server_group = self.server_groups_client.show_server_group(
-            group_id)['server_group']
-        hosts = {}
-        for server in servers:
-            self.assertIn(server['id'], server_group['members'])
-            hosts[server['id']] = self._get_host(server['id'])
-
-        # Assert the servers are on different hosts.
-        hostnames = list(hosts.values())
+        hosts = self._create_servers_with_group('anti-affinity')
+        hostnames = hosts.values()
         self.assertNotEqual(hostnames[0], hostnames[1],
                             'Servers are on the same host: %s' % hosts)
 
@@ -122,26 +124,7 @@
         Creates two servers in an affinity server group and
         asserts the servers are in the group and on same host.
         """
-        group_id = self.create_test_server_group(policy=['affinity'])['id']
-        hints = {'group': group_id}
-        reservation_id = self.create_test_server(
-            scheduler_hints=hints, wait_until='ACTIVE', min_count=2,
-            return_reservation_id=True)['reservation_id']
-
-        # Get the servers using the reservation_id.
-        servers = self.servers_client.list_servers(
-            detail=True, reservation_id=reservation_id)['servers']
-        self.assertEqual(2, len(servers))
-
-        # Assert the servers are in the group.
-        server_group = self.server_groups_client.show_server_group(
-            group_id)['server_group']
-        hosts = {}
-        for server in servers:
-            self.assertIn(server['id'], server_group['members'])
-            hosts[server['id']] = self._get_host(server['id'])
-
-        # Assert the servers are on same host.
+        hosts = self._create_servers_with_group('affinity')
         hostnames = hosts.values()
         self.assertEqual(hostnames[0], hostnames[1],
                          'Servers are on the different hosts: %s' % hosts)