diff --git a/csst_common/data_manager.py b/csst_common/data_manager.py
index a29db5348e538cf09318e6f3aff2704ea630de50..e3bcfc363729effd1c3a36b6fc74f4c5082d8817 100644
--- a/csst_common/data_manager.py
+++ b/csst_common/data_manager.py
@@ -506,6 +506,10 @@ class CsstMsDataManager:
         """ Remove L1 (sub-)directory. """
         os.system(f"rm -rf {os.path.join(self.dir_l1, dir_name)}")
 
+    @staticmethod
+    def clear_dir(dir_path):
+        os.system(f"rm -rf {dir_path}/*")
+
     # DFS interfaces
     @property
     def dfs_node(self):