diff --git a/tcp_tests/templates/virtual-mcp11-k8s-contrail/underlay.yaml b/tcp_tests/templates/virtual-mcp11-k8s-contrail/underlay.yaml
index d4390b5..af1b8e6 100644
--- a/tcp_tests/templates/virtual-mcp11-k8s-contrail/underlay.yaml
+++ b/tcp_tests/templates/virtual-mcp11-k8s-contrail/underlay.yaml
@@ -168,7 +168,7 @@
               cloud_init_iface_up: ens3
               volumes:
                 - name: system
-                  capacity: !os_env NODE_VOLUME_SIZE, 20
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
                   backing_store: cfg01_day01_image
                   format: qcow2
                 - name: iso  # Volume with name 'iso' will be used