diff --git a/packaging/cfg/taos.cfg b/packaging/cfg/taos.cfg
index 73fa915abdde8e0940f142fc56124f66e32a6d25..210a168e0d4c0224d6fdcba4b7d1dedec2cd371d 100644
--- a/packaging/cfg/taos.cfg
+++ b/packaging/cfg/taos.cfg
@@ -162,10 +162,10 @@
 # stop writing logs when the disk size of the log folder is less than this value
 # minimalLogDirGB       0.1
 
-# stop writing temporary files when the disk size of the log folder is less than this value
+# stop writing temporary files when the disk size of the tmp folder is less than this value
 # minimalTmpDirGB       0.1
 
-# stop writing data when the disk size of the log folder is less than this value
+# if disk free space is less than this value, taosd service exit directly within startup process
 # minimalDataDirGB      0.1
 
 # One mnode is equal to the number of vnode consumed