diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index a7c8fb7..15369de 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -3,6 +3,21 @@
 Tempest Configuration Guide
 ===========================
 
+This guide is a starting point for configuring tempest. It aims to elaborate
+on and explain some of the mandatory and common configuration settings and how
+they are used in conjunction. The source of truth on each option is the sample
+config file which explains the purpose of each individual option.
+
+Lock Path
+---------
+
+There are some tests and operations inside of tempest that need to be
+externally locked when running in parallel to prevent them from running at
+the same time. This is a mandatory step for configuring tempest and is still
+needed even when running serially. All that is needed to do this is:
+
+ #. Set the lock_path option in the oslo_concurrency group
+
 Auth/Credentials
 ----------------
 
diff --git a/tempest/api_schema/response/compute/servers.py b/tempest/api_schema/response/compute/servers.py
index f9c957b..3950173 100644
--- a/tempest/api_schema/response/compute/servers.py
+++ b/tempest/api_schema/response/compute/servers.py
@@ -71,6 +71,18 @@
             },
             'required': ['id', 'links']
         },
+        'fault': {
+            'type': 'object',
+            'properties': {
+                'code': {'type': 'integer'},
+                'created': {'type': 'string'},
+                'message': {'type': 'string'},
+                'details': {'type': 'string'},
+            },
+            # NOTE(gmann): 'details' is not necessary to be present
+            #  in the 'fault'. So it is not defined as 'required'.
+            'required': ['code', 'created', 'message']
+        },
         'user_id': {'type': 'string'},
         'tenant_id': {'type': 'string'},
         'created': {'type': 'string'},
@@ -83,7 +95,9 @@
     # NOTE(GMann): 'progress' attribute is present in the response
     # only when server's status is one of the progress statuses
     # ("ACTIVE","BUILD", "REBUILD", "RESIZE","VERIFY_RESIZE")
-    # So it is not defined as 'required'.
+    # 'fault' attribute is present in the response
+    # only when server's status is one of the  "ERROR", "DELETED".
+    # So they are not defined as 'required'.
     'required': ['id', 'name', 'status', 'image', 'flavor',
                  'user_id', 'tenant_id', 'created', 'updated',
                  'metadata', 'links', 'addresses']
@@ -144,8 +158,11 @@
                     },
                     'required': ['id', 'links', 'name']
                 }
-            }
+            },
+            'servers_links': parameter_types.links
         },
+        # NOTE(gmann): servers_links attribute is not necessary to be
+        # present always So it is not 'required'.
         'required': ['servers']
     }
 }
diff --git a/tempest/api_schema/response/compute/v2/images.py b/tempest/api_schema/response/compute/v2/images.py
index 43dae38..21dc9ab 100644
--- a/tempest/api_schema/response/compute/v2/images.py
+++ b/tempest/api_schema/response/compute/v2/images.py
@@ -78,8 +78,11 @@
                     },
                     'required': ['id', 'links', 'name']
                 }
-            }
+            },
+            'images_links': parameter_types.links
         },
+        # NOTE(gmann): images_links attribute is not necessary to be
+        # present always So it is not 'required'.
         'required': ['images']
     }
 }
@@ -132,8 +135,11 @@
             'images': {
                 'type': 'array',
                 'items': common_image_schema
-            }
+            },
+            'images_links': parameter_types.links
         },
+        # NOTE(gmann): images_links attribute is not necessary to be
+        # present always So it is not 'required'.
         'required': ['images']
     }
 }
diff --git a/tempest/api_schema/response/compute/v2/servers.py b/tempest/api_schema/response/compute/v2/servers.py
index c116bf5..ebee697 100644
--- a/tempest/api_schema/response/compute/v2/servers.py
+++ b/tempest/api_schema/response/compute/v2/servers.py
@@ -335,7 +335,11 @@
     'items']['properties'].update({
         'OS-EXT-IPS:type': {'type': 'string'},
         'OS-EXT-IPS-MAC:mac_addr': parameter_types.mac_address})
-
+# Defining 'servers_links' attributes for V2 server schema
+list_servers_detail['response_body'][
+    'properties'].update({'servers_links': parameter_types.links})
+# NOTE(gmann): servers_links attribute is not necessary to be
+# present always So it is not 'required'.
 
 rebuild_server = copy.deepcopy(update_server)
 rebuild_server['status_code'] = [202]