diff --git a/lower-constraints.txt b/lower-constraints.txt
index e049d4bf..77d268e5 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -120,7 +120,7 @@ PyNaCl==1.2.1
 pyOpenSSL==17.5.0
 pyparsing==2.2.0
 pyperclip==1.6.0
-pypowervm==1.1.18
+pypowervm==1.1.20
 pyroute2==0.4.21
 pytest==3.4.2
 python-barbicanclient==4.5.2
diff --git a/nova_powervm/tests/virt/powervm/volume/test_vscsi.py b/nova_powervm/tests/virt/powervm/volume/test_vscsi.py
index d68f7a45..685edcf9 100644
--- a/nova_powervm/tests/virt/powervm/volume/test_vscsi.py
+++ b/nova_powervm/tests/virt/powervm/volume/test_vscsi.py
@@ -71,6 +71,7 @@ class BaseVSCSITest(test_vol.TestVolumeAdapter):
                     },
                     'target_lun': '1',
                     'volume_id': 'a_volume_identifier',
+                    'pg83NAA': '4567'
                 },
             }
             mock_inst = mock.MagicMock()
@@ -542,16 +543,18 @@ class TestVSCSIAdapterMultiVIOS(BaseVSCSITest):
         self.slot_mgr = mock.Mock()
         self.slot_mgr.build_map.get_vscsi_slot.return_value = 62, 'the_lua'
 
+    @mock.patch('pypowervm.tasks.hdisk.build_itls')
     @mock.patch('pypowervm.tasks.scsi_mapper.add_map')
     @mock.patch('pypowervm.tasks.scsi_mapper.build_vscsi_mapping')
     @mock.patch('pypowervm.tasks.hdisk.discover_hdisk')
     @mock.patch('nova_powervm.virt.powervm.vm.get_vm_id')
     def test_connect_volume_multi_vio(self, mock_vm_id, mock_discover_hdisk,
-                                      mock_build_map, mock_add_map):
+                                      mock_build_map, mock_add_map, mock_itls):
         # The mock return values
         mock_discover_hdisk.return_value = (
             hdisk.LUAStatus.DEVICE_AVAILABLE, 'devname', 'udid')
         mock_vm_id.return_value = 'partition_id'
+        mock_itls.return_value = 'fake_itls'
 
         def build_map_func(host_uuid, vios_w, lpar_uuid, pv,
                            lpar_slot_num=None, lua=None, target_name=None):
@@ -568,6 +571,13 @@ class TestVSCSIAdapterMultiVIOS(BaseVSCSITest):
         # Run the method
         self.vol_drv.connect_volume(self.slot_mgr)
 
+        # Assert the discover_hdisk call parameters
+        mock_discover_hdisk.assert_has_calls([
+            mock.call(
+                self.adpt, vio.uuid, 'fake_itls',
+                device_id='NDU2Nw=='.encode())
+            for vio in self.feed], any_order=True)
+
         # As initialized above, remove_maps returns True to trigger update.
         self.assertEqual(2, mock_add_map.call_count)
         self.assertEqual(2, mock_build_map.call_count)
diff --git a/nova_powervm/virt/powervm/volume/vscsi.py b/nova_powervm/virt/powervm/volume/vscsi.py
index 7bf59b7f..5ad24ad9 100644
--- a/nova_powervm/virt/powervm/volume/vscsi.py
+++ b/nova_powervm/virt/powervm/volume/vscsi.py
@@ -29,9 +29,9 @@ from pypowervm.tasks import partition as pvm_tpar
 from pypowervm.utils import transaction as tx
 from pypowervm.wrappers import virtual_io_server as pvm_vios
 
+import base64
 import six
 
-
 CONF = cfg.CONF
 LOG = logging.getLogger(__name__)
 
@@ -189,8 +189,13 @@ class PVVscsiFCVolumeAdapter(volume.VscsiVolumeAdapter,
                       instance=self.instance)
             return None, None, None
 
+        device_id = self.connection_info.get('data', {}).get('pg83NAA')
+        if device_id:
+            device_id = base64.b64encode(device_id.encode())
+
         status, device_name, udid = hdisk.discover_hdisk(self.adapter,
-                                                         vios_w.uuid, itls)
+                                                         vios_w.uuid, itls,
+                                                         device_id=device_id)
 
         if hdisk.good_discovery(status, device_name):
             LOG.info('Discovered %(hdisk)s on vios %(vios)s for volume '
diff --git a/requirements.txt b/requirements.txt
index 7bdcfca3..9fc76de6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ oslo.config>=5.2.0 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0
 oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
 oslo.utils>=3.37.0 # Apache-2.0
-pypowervm>=1.1.18 # Apache-2.0
+pypowervm>=1.1.20 # Apache-2.0
 python-swiftclient>=3.2.0 # Apache-2.0
 taskflow>=2.16.0 # Apache-2.0
 setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,>=21.0.0 # PSF/ZPL