diff --git a/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml b/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml
index 509edbe..26456f7 100644
--- a/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-pike-dvr-ssl/underlay.yaml
@@ -31,6 +31,9 @@
 {% set HOSTNAME_MTR03 = os_env('HOSTNAME_MTR03', 'mtr03.' + DOMAIN_NAME) %}
 {% set HOSTNAME_GTW01 = os_env('HOSTNAME_GTW01', 'gtw01.' + DOMAIN_NAME) %}
 {% set HOSTNAME_PRX01 = os_env('HOSTNAME_PRX01', 'prx01.' + DOMAIN_NAME) %}
+{% set HOSTNAME_MDB01 = os_env('HOSTNAME_MDB01', 'mdb01.' + DOMAIN_NAME) %}
+{% set HOSTNAME_MDB02 = os_env('HOSTNAME_MDB02', 'mdb02.' + DOMAIN_NAME) %}
+{% set HOSTNAME_MDB03 = os_env('HOSTNAME_MDB03', 'mdb03.' + DOMAIN_NAME) %}
 {% set HOSTNAME_SHARE01 = os_env('HOSTNAME_SHARE01', 'share01.' + DOMAIN_NAME) %}
 
 template:
@@ -59,6 +62,9 @@
             default_{{ HOSTNAME_MTR01 }}: +86
             default_{{ HOSTNAME_MTR02 }}: +87
             default_{{ HOSTNAME_MTR03 }}: +88
+            default_{{ HOSTNAME_MDB01 }}: +97
+            default_{{ HOSTNAME_MDB02 }}: +98
+            default_{{ HOSTNAME_MDB03 }}: +99
             default_{{ HOSTNAME_GTW01 }}: +110
             default_{{ HOSTNAME_PRX01 }}: +121
             default_{{ HOSTNAME_SHARE01 }}: +204
@@ -86,6 +92,9 @@
             default_{{ HOSTNAME_MTR01 }}: +86
             default_{{ HOSTNAME_MTR02 }}: +87
             default_{{ HOSTNAME_MTR03 }}: +88
+            default_{{ HOSTNAME_MDB01 }}: +97
+            default_{{ HOSTNAME_MDB02 }}: +98
+            default_{{ HOSTNAME_MDB03 }}: +99
             default_{{ HOSTNAME_GTW01 }}: +110
             default_{{ HOSTNAME_PRX01 }}: +121
             default_{{ HOSTNAME_SHARE01 }}: +204
@@ -113,6 +122,9 @@
             default_{{ HOSTNAME_MTR01 }}: +86
             default_{{ HOSTNAME_MTR02 }}: +87
             default_{{ HOSTNAME_MTR03 }}: +88
+            default_{{ HOSTNAME_MDB01 }}: +97
+            default_{{ HOSTNAME_MDB02 }}: +98
+            default_{{ HOSTNAME_MDB03 }}: +99
             default_{{ HOSTNAME_GTW01 }}: +110
             default_{{ HOSTNAME_PRX01 }}: +121
             default_{{ HOSTNAME_SHARE01 }}: +204
@@ -140,6 +152,9 @@
             default_{{ HOSTNAME_MTR01 }}: +86
             default_{{ HOSTNAME_MTR02 }}: +87
             default_{{ HOSTNAME_MTR03 }}: +88
+            default_{{ HOSTNAME_MDB01 }}: +97
+            default_{{ HOSTNAME_MDB02 }}: +98
+            default_{{ HOSTNAME_MDB03 }}: +99
             default_{{ HOSTNAME_GTW01 }}: +110
             default_{{ HOSTNAME_PRX01 }}: +121
             default_{{ HOSTNAME_SHARE01 }}: +204
@@ -330,6 +345,93 @@
               interfaces: *interfaces
               network_config: *network_config
 
+          - name: {{ HOSTNAME_MDB01 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 2
+              memory: !os_env SLAVE_NODE_MEMORY, 8192
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: cinder
+                  capacity: 50
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *interfaces
+              network_config: *network_config
+
+          - name: {{ HOSTNAME_MDB02 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 2
+              memory: !os_env SLAVE_NODE_MEMORY, 8192
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: cinder
+                  capacity: 50
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *interfaces
+              network_config: *network_config
+
+          - name: {{ HOSTNAME_MDB03 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 2
+              memory: !os_env SLAVE_NODE_MEMORY, 8192
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: cinder
+                  capacity: 50
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *interfaces
+              network_config: *network_config
+
           - name: {{ HOSTNAME_MON01 }}
             role: salt_minion
             params:
@@ -705,29 +807,3 @@
 
               interfaces: *all_interfaces
               network_config: *all_network_config
-
-          - name: {{ HOSTNAME_SHARE01 }}
-            role: salt_minion
-            params:
-              vcpu: !os_env SLAVE_NODE_CPU, 2
-              memory: !os_env SLAVE_NODE_MEMORY, 4096
-              boot:
-                - hd
-              cloud_init_volume_name: iso
-              cloud_init_iface_up: ens3
-              volumes:
-                - name: system
-                  capacity: !os_env NODE_VOLUME_SIZE, 150
-                  backing_store: mcp_ubuntu_1604_image
-                  format: qcow2
-                - name: iso  # Volume with name 'iso' will be used
-                             # for store image with cloud-init metadata.
-                  capacity: 1
-                  format: raw
-                  device: cdrom
-                  bus: ide
-                  cloudinit_meta_data: *cloudinit_meta_data
-                  cloudinit_user_data: *cloudinit_user_data_1604
-
-              interfaces: *all_interfaces
-              network_config: *all_network_config