diff --git a/cinder/volume/manager.py b/cinder/volume/manager.py
index 1a114639a0f..bf09481eaf8 100644
--- a/cinder/volume/manager.py
+++ b/cinder/volume/manager.py
@@ -1026,12 +1026,12 @@ class VolumeManager(manager.CleanableManager,
             # and the volume status updated.
             utils.require_driver_initialized(self.driver)
 
-            LOG.debug('Attaching volume %(volume_id)s to instance '
-                      '%(instance)s at mountpoint %(mount)s on host '
-                      '%(host)s.',
-                      {'volume_id': volume.id, 'instance': instance_uuid,
-                       'mount': mountpoint, 'host': host_name_sanitized},
-                      resource=volume)
+            LOG.info(_LI('Attaching volume %(volume_id)s to instance '
+                         '%(instance)s at mountpoint %(mount)s on host '
+                         '%(host)s.'),
+                     {'volume_id': volume_id, 'instance': instance_uuid,
+                      'mount': mountpoint, 'host': host_name_sanitized},
+                     resource=volume)
             self.driver.attach_volume(context,
                                       volume,
                                       instance_uuid,
@@ -1108,11 +1108,11 @@ class VolumeManager(manager.CleanableManager,
             # and the volume status updated.
             utils.require_driver_initialized(self.driver)
 
-            LOG.debug('Detaching volume %(volume_id)s from instance '
-                      '%(instance)s.',
-                      {'volume_id': volume_id,
-                       'instance': attachment.get('instance_uuid')},
-                      resource=volume)
+            LOG.info(_LI('Detaching volume %(volume_id)s from instance '
+                         '%(instance)s.'),
+                     {'volume_id': volume_id,
+                      'instance': attachment.get('instance_uuid')},
+                     resource=volume)
             self.driver.detach_volume(context, volume, attachment)
         except Exception:
             with excutils.save_and_reraise_exception():