enable backupswitcher by default

app/UI/Disk/Forms/UpdateForm.php

@@ -55,7 +55,7 @@ class UpdateForm extends BaseForm implements ClientArea
         }
         $backupSwitcher = $this->getField('backup');
         if ( parent::getFormData()['id'] == 'scsi0') {
-            $backupSwitcher->addHtmlAttribute(':disabled', true);
+//            $backupSwitcher->addHtmlAttribute(':disabled', true);
         }
 
     }