diff --git a/cinder/tests/unit/windows/test_smbfs.py b/cinder/tests/unit/windows/test_smbfs.py
index 4a49e92a285..ab7e76b50c5 100644
--- a/cinder/tests/unit/windows/test_smbfs.py
+++ b/cinder/tests/unit/windows/test_smbfs.py
@@ -74,6 +74,7 @@ class WindowsSmbFsTestCase(test.TestCase):
             return_value=self._FAKE_MNT_POINT)
         self._smbfs_driver.base = self._FAKE_MNT_BASE
 
+        self._diskutils = self._smbfs_driver._diskutils
         self._vhdutils = self._smbfs_driver._vhdutils
 
         self.volume = self._simple_volume()
@@ -451,8 +452,10 @@ class WindowsSmbFsTestCase(test.TestCase):
             self._FAKE_SHARE, self._FAKE_SHARE_OPTS)
 
     def test_get_capacity_info(self):
-        self._smbfs_driver._smbutils.get_share_capacity_info.return_value = (
+        self._diskutils.get_disk_capacity.return_value = (
             self._FAKE_TOTAL_SIZE, self._FAKE_TOTAL_AVAILABLE)
+        self._smbfs_driver._get_mount_point_for_share = mock.Mock(
+            return_value=mock.sentinel.mnt_point)
         self._smbfs_driver._get_total_allocated = mock.Mock(
             return_value=self._FAKE_TOTAL_ALLOCATED)
 
@@ -462,6 +465,13 @@ class WindowsSmbFsTestCase(test.TestCase):
                             self._FAKE_TOTAL_ALLOCATED]]
         self.assertEqual(expected_ret_val, ret_val)
 
+        self._smbfs_driver._get_mount_point_for_share.assert_called_once_with(
+            self._FAKE_SHARE)
+        self._diskutils.get_disk_capacity.assert_called_once_with(
+            mock.sentinel.mnt_point)
+        self._smbfs_driver._get_total_allocated.assert_called_once_with(
+            self._FAKE_SHARE)
+
     def _test_get_img_info(self, backing_file=None):
         self._smbfs_driver._vhdutils.get_vhd_parent_path.return_value = (
             backing_file)
diff --git a/cinder/volume/drivers/windows/smbfs.py b/cinder/volume/drivers/windows/smbfs.py
index 097dae5e2e0..f44b0922acc 100644
--- a/cinder/volume/drivers/windows/smbfs.py
+++ b/cinder/volume/drivers/windows/smbfs.py
@@ -121,6 +121,7 @@ class WindowsSmbfsDriver(remotefs_drv.RemoteFSPoolMixin,
         self._vhdutils = utilsfactory.get_vhdutils()
         self._pathutils = utilsfactory.get_pathutils()
         self._smbutils = utilsfactory.get_smbutils()
+        self._diskutils = utilsfactory.get_diskutils()
 
     def do_setup(self, context):
         self._check_os_platform()
@@ -343,8 +344,9 @@ class WindowsSmbfsDriver(remotefs_drv.RemoteFSPoolMixin,
 
         :param smbfs_share: example //172.18.194.100/var/smbfs
         """
-        total_size, total_available = self._smbutils.get_share_capacity_info(
-            smbfs_share)
+        mount_point = self._get_mount_point_for_share(smbfs_share)
+        total_size, total_available = self._diskutils.get_disk_capacity(
+            mount_point)
         total_allocated = self._get_total_allocated(smbfs_share)
         return_value = [total_size, total_available, total_allocated]
         LOG.info('Smb share %(share)s Total size %(size)s '