diff --git a/manifests/backend/dellemc_xtremio.pp b/manifests/backend/dellemc_xtremio.pp
index 7998b859..b5f59135 100644
--- a/manifests/backend/dellemc_xtremio.pp
+++ b/manifests/backend/dellemc_xtremio.pp
@@ -28,20 +28,21 @@
 #
 # [*xtremio_array_busy_retry_count*]
 #   (optional) Number of retries in case array is busy.
-#   Defaults to 5
+#   Defaults to $::os_service_default
 #
 # [*xtremio_array_busy_retry_interval*]
 #   (optional) Interval between retries in case array is busy.
-#   Defaults to 5
+#   Defaults to $::os_service_default
 #
 # [*xtremio_volumes_per_glance_cache*]
 #   (optional) Number of volumes created from each cached glance image.
-#   Defaults to 100
+#   Defaults to $::os_service_default
 #
 # [*xtremio_ports*]
 #   (optional) Allowed ports. Comma separated list of XtremIO iSCSI IPs or
 #   FC WWNs (ex. 58:cc:f0:98:49:22:07:02) to be used. If is not set all ports
 #   are allowed.
+#   Defaults to $::os_service_default
 #
 # [*extra_options*]
 #   (optional) Hash of extra options to pass to the backend stanza.
@@ -68,9 +69,9 @@ define cinder::backend::dellemc_xtremio (
   $xtremio_cluster_name,
   $volume_backend_name               = $name,
   $backend_availability_zone         = $::os_service_default,
-  $xtremio_array_busy_retry_count    = 5,
-  $xtremio_array_busy_retry_interval = 5,
-  $xtremio_volumes_per_glance_cache  = 100,
+  $xtremio_array_busy_retry_count    = $::os_service_default,
+  $xtremio_array_busy_retry_interval = $::os_service_default,
+  $xtremio_volumes_per_glance_cache  = $::os_service_default,
   $manage_volume_type                = false,
   $xtremio_storage_protocol          = 'iSCSI',
   $xtremio_ports                     = $::os_service_default,
diff --git a/spec/defines/cinder_backend_dellemc_xtremio_spec.rb b/spec/defines/cinder_backend_dellemc_xtremio_spec.rb
index 9453beb8..921e1bf9 100644
--- a/spec/defines/cinder_backend_dellemc_xtremio_spec.rb
+++ b/spec/defines/cinder_backend_dellemc_xtremio_spec.rb
@@ -17,9 +17,10 @@ describe 'cinder::backend::dellemc_xtremio' do
   let :default_params do
     {
       :backend_availability_zone         => '<SERVICE DEFAULT>',
-      :xtremio_array_busy_retry_count    => 5,
-      :xtremio_array_busy_retry_interval => 5,
-      :xtremio_volumes_per_glance_cache  => 100,
+      :xtremio_array_busy_retry_count    => '<SERVICE DEFAULT>',
+      :xtremio_array_busy_retry_interval => '<SERVICE DEFAULT>',
+      :xtremio_volumes_per_glance_cache  => '<SERVICE DEFAULT>',
+      :xtremio_ports                     => '<SERVICE DEFAULT>',
     }
   end
 
@@ -27,8 +28,9 @@ describe 'cinder::backend::dellemc_xtremio' do
     {
       :backend_availability_zone         => 'my_zone',
       :xtremio_array_busy_retry_count    => 15,
-      :xtremio_array_busy_retry_interval => 25,
-      :xtremio_volumes_per_glance_cache  => 10,
+      :xtremio_array_busy_retry_interval => 6,
+      :xtremio_volumes_per_glance_cache  => 100,
+      :xtremio_ports                     => '58:cc:f0:98:49:22:07:02',
     }
   end