diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 45cdeaf..5c30b96 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -356,7 +356,7 @@
 
     def _get_output(self):
         output = self.client.get_console_output(
-            self.server_id, 10)['output']
+            self.server_id, length=10)['output']
         self.assertTrue(output, "Console output was empty.")
         lines = len(output.split('\n'))
         self.assertEqual(lines, 10)
@@ -384,8 +384,7 @@
         server = self.create_test_server(wait_until='ACTIVE')
 
         def _check_full_length_console_log():
-            output = self.client.get_console_output(server['id'],
-                                                    None)['output']
+            output = self.client.get_console_output(server['id'])['output']
             self.assertTrue(output, "Console output was empty.")
             lines = len(output.split('\n'))
 
@@ -499,7 +498,7 @@
         console_types = ['novnc', 'xvpvnc']
         for console_type in console_types:
             body = self.client.get_vnc_console(self.server_id,
-                                               console_type)['console']
+                                               type=console_type)['console']
             self.assertEqual(console_type, body['type'])
             self.assertNotEqual('', body['url'])
             self._validate_url(body['url'])
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index a5e9afd..e0ed66c 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -430,7 +430,7 @@
         nonexistent_server = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound,
                           self.client.get_console_output,
-                          nonexistent_server, 10)
+                          nonexistent_server, length=10)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('6f47992b-5144-4250-9f8b-f00aa33950f3')
diff --git a/tempest/api/compute/test_authorization.py b/tempest/api/compute/test_authorization.py
index 1fec139..37ce4fc 100644
--- a/tempest/api/compute/test_authorization.py
+++ b/tempest/api/compute/test_authorization.py
@@ -443,4 +443,4 @@
         # A Get Console Output for another user's server should fail
         self.assertRaises(lib_exc.NotFound,
                           self.alt_client.get_console_output,
-                          self.server['id'], 10)
+                          self.server['id'], length=10)
diff --git a/tempest/api/orchestration/stacks/test_neutron_resources.py b/tempest/api/orchestration/stacks/test_neutron_resources.py
index a614c76..8466e11 100644
--- a/tempest/api/orchestration/stacks/test_neutron_resources.py
+++ b/tempest/api/orchestration/stacks/test_neutron_resources.py
@@ -89,7 +89,7 @@
                 server_id = body['physical_resource_id']
                 LOG.debug('Console output for %s', server_id)
                 output = cls.servers_client.get_console_output(
-                    server_id, None)['output']
+                    server_id)['output']
                 LOG.debug(output)
             raise e
 
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 24877f4..802908d 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -455,7 +455,7 @@
             servers = servers['servers']
         for server in servers:
             console_output = self.servers_client.get_console_output(
-                server['id'], length=None)['output']
+                server['id'])['output']
             LOG.debug('Console output for %s\nbody=\n%s',
                       server['id'], console_output)
 
diff --git a/tempest/services/compute/json/servers_client.py b/tempest/services/compute/json/servers_client.py
index 80b3094..8d3fcb3 100644
--- a/tempest/services/compute/json/servers_client.py
+++ b/tempest/services/compute/json/servers_client.py
@@ -337,7 +337,11 @@
         return self.action(server_id, 'removeSecurityGroup', name=name)
 
     def live_migrate_server(self, server_id, **kwargs):
-        """This should be called with administrator privileges ."""
+        """This should be called with administrator privileges.
+
+        Available params: http://developer.openstack.org/
+                          api-ref-compute-v2.1.html#migrateLive
+        """
         return self.action(server_id, 'os-migrateLive', **kwargs)
 
     def migrate_server(self, server_id, **kwargs):
@@ -345,7 +349,11 @@
         return self.action(server_id, 'migrate', **kwargs)
 
     def lock_server(self, server_id, **kwargs):
-        """Locks the given server."""
+        """Lock the given server.
+
+        Available params: http://developer.openstack.org/
+                          api-ref-compute-v2.1.html#lock
+        """
         return self.action(server_id, 'lock', **kwargs)
 
     def unlock_server(self, server_id, **kwargs):
@@ -384,11 +392,14 @@
         """Shelve-offload the provided server."""
         return self.action(server_id, 'shelveOffload', **kwargs)
 
-    def get_console_output(self, server_id, length):
-        kwargs = {'length': length} if length else {}
+    def get_console_output(self, server_id, **kwargs):
+        """Get console output.
+
+        Available params: http://developer.openstack.org/
+                          api-ref-compute-v2.1.html#getConsoleOutput
+        """
         return self.action(server_id, 'os-getConsoleOutput',
-                           schema.get_console_output,
-                           **kwargs)
+                           schema.get_console_output, **kwargs)
 
     def list_virtual_interfaces(self, server_id):
         """List the virtual interfaces used in an instance."""
@@ -430,7 +441,11 @@
         return service_client.ResponseBody(resp, body)
 
     def force_delete_server(self, server_id, **kwargs):
-        """Force delete a server."""
+        """Force delete a server.
+
+        Available params: http://developer.openstack.org/
+                          api-ref-compute-v2.1.html#forceDelete
+        """
         return self.action(server_id, 'forceDelete', **kwargs)
 
     def restore_soft_deleted_server(self, server_id, **kwargs):
@@ -442,14 +457,21 @@
         return self.action(server_id, 'resetNetwork', **kwargs)
 
     def inject_network_info(self, server_id, **kwargs):
-        """Inject the Network Info into server"""
+        """Inject the Network Info into server.
+
+        Available params: http://developer.openstack.org/
+                          api-ref-compute-v2.1.html#injectNetworkInfo
+        """
         return self.action(server_id, 'injectNetworkInfo', **kwargs)
 
-    def get_vnc_console(self, server_id, console_type):
-        """Get URL of VNC console."""
+    def get_vnc_console(self, server_id, **kwargs):
+        """Get URL of VNC console.
+
+        Available params: http://developer.openstack.org/
+                          api-ref-compute-v2.1.html#getVNCConsole
+        """
         return self.action(server_id, "os-getVNCConsole",
-                           schema.get_vnc_console,
-                           type=console_type)
+                           schema.get_vnc_console, **kwargs)
 
     def add_fixed_ip(self, server_id, **kwargs):
         """Add a fixed IP to server instance.
diff --git a/tempest/tests/services/compute/test_servers_client.py b/tempest/tests/services/compute/test_servers_client.py
index 95b81c1..d88f524 100644
--- a/tempest/tests/services/compute/test_servers_client.py
+++ b/tempest/tests/services/compute/test_servers_client.py
@@ -995,5 +995,5 @@
             'tempest.common.service_client.ServiceClient.post',
             {'console': self.FAKE_VNC_CONSOLE},
             server_id=self.server_id,
-            console_type='fake-console-type'
+            type='fake-console-type'
             )