Merge "Unity: force delete lun by default"

cinder/volume/drivers/dell_emc/vnx/common.py

@@ -102,9 +102,8 @@ VNX_OPTS = [
                 'to maximum number of pool LUNs is reached. '
                 'By default, the value is False.'),
     cfg.BoolOpt('force_delete_lun_in_storagegroup',
-                default=False,
-                help='Delete a LUN even if it is in Storage Groups. '
-                'By default, the value is False.'),
+                default=True,
+                help='Delete a LUN even if it is in Storage Groups.'),
     cfg.BoolOpt('ignore_pool_full_threshold',
                 default=False,
                 help='Force LUN creation even if '

doc/source/configuration/block-storage/drivers/dell-emc-vnx-driver.rst

@@ -318,7 +318,7 @@ section, the driver will move the volumes out of the storage groups and then
 delete them if the user tries to delete the volumes that remain in the storage
 group on the VNX array.
 
-The default value of ``force_delete_lun_in_storagegroup`` is ``False``.
+The default value of ``force_delete_lun_in_storagegroup`` is ``True``.
 
 Over subscription in thin provisioning
 --------------------------------------

releasenotes/notes/enable-force-delete-lun-d0e05b5d669e40f7.yaml

@@ -0,0 +1,15 @@
+---
+upgrade:
+  - |
+    DellEMC Unity: The fix of bug
+    `1825469 <https://bugs.launchpad.net/cinder/+bug/1825469>`_ changes the
+    default value of the ``force_delete_lun_in_storagegroup`` option from
+    ``False`` to ``True``, which means luns will always be force deleted after
+    upgrade.
+fixes:
+  - |
+    DellEMC Unity: Fix bug
+    `1825469 <https://bugs.launchpad.net/cinder/+bug/1825469>`_. The fix
+    enables the ``force_delete_lun_in_storagegroup`` option to ``True`` by
+    default, which makes sure that luns can deleted even when they are still in
+    storage groups.