Validate storage on save

byostorage/models.py

@@ -52,6 +52,12 @@ class UserStorage(models.Model):
         except Exception as e:
             raise ValueError("Error in settings for storage '{0}' [{1}]".format(self.name, e))
 
+    def clean(self):
+        try:
+            self.test_storage()
+        except Exception as e:
+            raise ValidationError(str(e))
+
     def test_storage(self):
         # just do something that requires connection
         try: