diff --git a/docs/source/guides/admin-guides/manage_clusters/common/deployment/syncfile/syncfile_synclist_file.rst b/docs/source/guides/admin-guides/manage_clusters/common/deployment/syncfile/syncfile_synclist_file.rst
index 9af8e913f..4cd8e81e4 100644
--- a/docs/source/guides/admin-guides/manage_clusters/common/deployment/syncfile/syncfile_synclist_file.rst
+++ b/docs/source/guides/admin-guides/manage_clusters/common/deployment/syncfile/syncfile_synclist_file.rst
@@ -17,9 +17,9 @@ The basic entry format looks like following: ::
 
 The path_of_src_file* should be the full path of the source file on the Management Node.
 
-The path_of_dst_file* should be the full path of the destination file on target node.
+The path_of_dst_file* should be the full path of the destination file on target node. Please make sure path_of_dst_file* is not a existing directory on target node, otherwise, the file sync with ``updatenode -r /usr/bin/scp`` or ``xdcp -r /usr/bin/scp`` will fail.
 
-The path_of_dst_directory should be the full path of the destination directory.
+The path_of_dst_directory should be the full path of the destination directory. Please make sure *eth_of_dst_directory is not a existing file on target node, otherwise, the file sync with ``updatenode -r /usr/bin/scp`` or ``xdcp -r /usr/bin/scp`` will fail. 
 
 Since the synclist file is for common purpose, the target node need not be configured in it.
 
diff --git a/docs/source/guides/admin-guides/references/man1/updatenode.1.rst b/docs/source/guides/admin-guides/references/man1/updatenode.1.rst
index 82499c50e..20de04dd5 100644
--- a/docs/source/guides/admin-guides/references/man1/updatenode.1.rst
+++ b/docs/source/guides/admin-guides/references/man1/updatenode.1.rst
@@ -416,6 +416,14 @@ OPTIONS
  
  Specifies  the  full  path of the remote copy command used for syncing files to node targets, such as "/usr/bin/rsync" or "/usr/bin/scp". If not specified, rsync will be used by default.
  
+ Notice: The synclist for "-r /usr/bin/scp" has some differences with "-r /usr/bin/rsync":
+ 
+ 1) the ``EXECUTE`` clause is not supported in "-r /usr/bin/scp"
+ 
+ 2) if the destination directory specified in synclist is an existing file on target node, "updatenode -r /usr/bin/scp" will fail with ``scp: <destination directory>: Not a directory``
+ 
+ 3) if the destination file specified in synclist is an existing directory on target node, "updatenode -r /usr/bin/scp" will fail with ``scp: <destination file>: Is a directory``
+ 
 
 
 \ **-g|-**\ **-genmypost**\ 
diff --git a/xCAT-client/pods/man1/updatenode.1.pod b/xCAT-client/pods/man1/updatenode.1.pod
index 3fc86a737..45a11dde2 100644
--- a/xCAT-client/pods/man1/updatenode.1.pod
+++ b/xCAT-client/pods/man1/updatenode.1.pod
@@ -319,7 +319,15 @@ litefile table with source location specified in the litetree table.
 
 =item [B<-r>|B<--node-rcp> [I<full_path_to_remote_copy_command>]]
 
-Specifies  the  full  path of the remote copy command used for syncing files to node targets, such as "/usr/bin/rsync" or "/usr/bin/scp". If not specified, rsync will be used by default.
+Specifies  the  full  path of the remote copy command used for syncing files to node targets, such as "/usr/bin/rsync" or "/usr/bin/scp". If not specified, rsync will be used by default. 
+
+Notice: The synclist for "-r /usr/bin/scp" has some differences with "-r /usr/bin/rsync":
+
+1) the ``EXECUTE`` clause is not supported in "-r /usr/bin/scp"
+
+2) if the destination directory specified in synclist is an existing file on target node, "updatenode -r /usr/bin/scp" will fail with ``scp: <destination directory>: Not a directory``
+
+3) if the destination file specified in synclist is an existing directory on target node, "updatenode -r /usr/bin/scp" will fail with ``scp: <destination file>: Is a directory``
 
 
 =item B<-g|--genmypost>