diff --git a/manifests/backend/nexenta.pp b/manifests/backend/nexenta.pp
index 981ce34c..501d5093 100644
--- a/manifests/backend/nexenta.pp
+++ b/manifests/backend/nexenta.pp
@@ -18,19 +18,32 @@
 #   Defaults to: $name
 #
 # [*nexenta_volume*]
-#   (optional) Pool on SA that will hold all volumes. Defaults to 'cinder'.
+#   (optional) Pool on SA that will hold all volumes.
+#   Defaults to 'cinder'.
 #
 # [*nexenta_target_prefix*]
-#   (optional) IQN prefix for iSCSI targets. Defaults to 'iqn:'.
+#   (optional) IQN prefix for iSCSI targets.
+#   Defaults to 'iqn:'.
 #
 # [*nexenta_target_group_prefix*]
-#   (optional) Prefix for iSCSI target groups on SA. Defaults to 'cinder/'.
+#   (optional) Prefix for iSCSI target groups on SA.
+#   Defaults to 'cinder/'.
 #
 # [*nexenta_blocksize*]
-#   (optional) Block size for volumes. Defaults to '8k'.
+#   (optional) Block size for volumes.
+#   Defaults to '8192'.
 #
 # [*nexenta_sparse*]
-#   (optional) Flag to create sparse volumes. Defaults to true.
+#   (optional) Flag to create sparse volumes.
+#   Defaults to true.
+#
+# [*nexenta_rest_port*]
+#   (optional) HTTP port for REST API.
+#   Defaults to '8457'.
+#
+# [*volume_driver*]
+#   (required) Nexenta driver to use.
+#   Defaults to: 'cinder.volume.drivers.nexenta.iscsi.NexentaISCSIDriver'.
 #
 # [*manage_volume_type*]
 #   (Optional) Whether or not manage Cinder Volume type.
@@ -52,8 +65,10 @@ define cinder::backend::nexenta (
   $nexenta_volume               = 'cinder',
   $nexenta_target_prefix        = 'iqn:',
   $nexenta_target_group_prefix  = 'cinder/',
-  $nexenta_blocksize            = '8k',
+  $nexenta_blocksize            = '8192',
   $nexenta_sparse               = true,
+  $nexenta_rest_port            = '8457',
+  $volume_driver                = 'cinder.volume.drivers.nexenta.iscsi.NexentaISCSIDriver',
   $manage_volume_type           = false,
   $extra_options                = {},
 ) {
@@ -70,7 +85,8 @@ define cinder::backend::nexenta (
     "${name}/nexenta_target_group_prefix": value => $nexenta_target_group_prefix;
     "${name}/nexenta_blocksize":           value => $nexenta_blocksize;
     "${name}/nexenta_sparse":              value => $nexenta_sparse;
-    "${name}/volume_driver":               value => 'cinder.volume.drivers.nexenta.volume.NexentaDriver';
+    "${name}/nexenta_rest_port":           value => $nexenta_rest_port;
+    "${name}/volume_driver":               value => $volume_driver;
   }
 
   if $manage_volume_type {
diff --git a/manifests/volume/nexenta.pp b/manifests/volume/nexenta.pp
index 76a128a8..c0c109a7 100644
--- a/manifests/volume/nexenta.pp
+++ b/manifests/volume/nexenta.pp
@@ -14,19 +14,32 @@
 #   (required) IP address of Nexenta SA.
 #
 # [*nexenta_volume*]
-#   (optional) Pool on SA that will hold all volumes. Defaults to 'cinder'.
+#   (optional) Pool on SA that will hold all volumes.
+#   Defaults to 'cinder'.
 #
 # [*nexenta_target_prefix*]
-#   (optional) IQN prefix for iSCSI targets. Defaults to 'iqn:'.
+#   (optional) IQN prefix for iSCSI targets.
+#   Defaults to 'iqn:'.
 #
 # [*nexenta_target_group_prefix*]
-#   (optional) Prefix for iSCSI target groups on SA. Defaults to 'cinder/'.
+#   (optional) Prefix for iSCSI target groups on SA.
+#   Defaults to 'cinder/'.
 #
 # [*nexenta_blocksize*]
-#   (optional) Block size for volumes. Defaults to '8k'.
+#   (optional) Block size for volumes.
+#   Defaults to '8k'.
 #
 # [*nexenta_sparse*]
-#   (optional) Flag to create sparse volumes. Defaults to true.
+#   (optional) Flag to create sparse volumes.
+#   Defaults to true.
+#
+# [*nexenta_rest_port*]
+#   (optional) HTTP port for REST API.
+#   Defaults to '8457'.
+#
+# [*volume_driver*]
+#   (required) Nexenta driver to use.
+#   Defaults to: 'cinder.volume.drivers.nexenta.iscsi.NexentaISCSIDriver'.
 #
 # [*extra_options*]
 #   (optional) Hash of extra options to pass to the backend stanza
@@ -41,8 +54,10 @@ class cinder::volume::nexenta (
   $nexenta_volume               = 'cinder',
   $nexenta_target_prefix        = 'iqn:',
   $nexenta_target_group_prefix  = 'cinder/',
-  $nexenta_blocksize            = '8k',
+  $nexenta_blocksize            = '8192',
   $nexenta_sparse               = true,
+  $nexenta_rest_port            = '8457',
+  $volume_driver                = 'cinder.volume.drivers.nexenta.iscsi.NexentaISCSIDriver',
   $extra_options                = {},
 ) {
 
@@ -60,6 +75,8 @@ cinder::backend::nexenta instead.')
     nexenta_target_group_prefix => $nexenta_target_group_prefix,
     nexenta_blocksize           => $nexenta_blocksize,
     nexenta_sparse              => $nexenta_sparse,
+    nexenta_rest_port           => $nexenta_rest_port,
+    volume_driver               => $volume_driver,
     extra_options               => $extra_options,
   }
 }
diff --git a/releasenotes/notes/nexenta-params-update-2411fefa01ee20aa.yaml b/releasenotes/notes/nexenta-params-update-2411fefa01ee20aa.yaml
new file mode 100644
index 00000000..6aabc00a
--- /dev/null
+++ b/releasenotes/notes/nexenta-params-update-2411fefa01ee20aa.yaml
@@ -0,0 +1,4 @@
+---
+upgrade:
+  - allow to configure previously hardcoded parameter
+    and add more options in nexenta backend.
diff --git a/spec/classes/cinder_volume_nexenta_spec.rb b/spec/classes/cinder_volume_nexenta_spec.rb
index c1196576..f515f55c 100644
--- a/spec/classes/cinder_volume_nexenta_spec.rb
+++ b/spec/classes/cinder_volume_nexenta_spec.rb
@@ -16,13 +16,15 @@ describe 'cinder::volume::nexenta' do
     { :nexenta_volume              => 'cinder',
       :nexenta_target_prefix       => 'iqn:',
       :nexenta_target_group_prefix => 'cinder/',
-      :nexenta_blocksize           => '8k',
-      :nexenta_sparse              => true }
+      :nexenta_blocksize           => '8192',
+      :nexenta_sparse              => true,
+      :nexenta_rest_port           => '8457',
+      :volume_driver               => 'cinder.volume.drivers.nexenta.iscsi.NexentaISCSIDriver' }
   end
 
 
   let :facts do
-    { :osfamily => 'Debian' }
+    OSDefaults.get_facts({})
   end
 
 
diff --git a/spec/defines/cinder_backend_nexenta_spec.rb b/spec/defines/cinder_backend_nexenta_spec.rb
index 54a4fd05..0e467961 100644
--- a/spec/defines/cinder_backend_nexenta_spec.rb
+++ b/spec/defines/cinder_backend_nexenta_spec.rb
@@ -16,12 +16,14 @@ describe 'cinder::backend::nexenta' do
     { :nexenta_volume              => 'cinder',
       :nexenta_target_prefix       => 'iqn:',
       :nexenta_target_group_prefix => 'cinder/',
-      :nexenta_blocksize           => '8k',
-      :nexenta_sparse              => true }
+      :nexenta_blocksize           => '8192',
+      :nexenta_sparse              => true,
+      :nexenta_rest_port           => '8457',
+      :volume_driver               => 'cinder.volume.drivers.nexenta.iscsi.NexentaISCSIDriver' }
   end
 
   let :facts do
-    { :osfamily => 'Debian' }
+    OSDefaults.get_facts({})
   end