diff --git a/devstack/gluster-functions.sh b/devstack/gluster-functions.sh
index 5fb8a39..28026e6 100755
--- a/devstack/gluster-functions.sh
+++ b/devstack/gluster-functions.sh
@@ -254,7 +254,7 @@ function _configure_manila_glusterfs_nfs {
     _create_thin_lv_pool
 
     # Create Gluster Volume
-    _create_thin_lv_gluster_vol manila-glusterfs-vol 20G
+    _create_thin_lv_gluster_vol manila-glusterfs-vol 200G
 
     # Configure manila.conf
     _configure_manila_glusterfs glusternfs1 manila-glusterfs-vol