diff --git a/xCAT-client/pods/man1/rpower.1.pod b/xCAT-client/pods/man1/rpower.1.pod
index bed4f9886..8b5052f00 100644
--- a/xCAT-client/pods/man1/rpower.1.pod
+++ b/xCAT-client/pods/man1/rpower.1.pod
@@ -20,7 +20,9 @@ B<rpower> I<noderange> [B<softoff>]
 
 =head2 CEC (using Direct FSP Management) specific:
 
-B<rpower> I<noderange> [B<on>|B<off>|B<stat>|B<state>|B<lowpower>|B<resetsp>]
+B<rpower> I<noderange> [B<onstandby>|B<stat>|B<state>] [B<-T tooltype>]
+
+B<rpower> I<noderange> [B<on>|B<off>|B<lowpower>|B<resetsp>]
 
 =head2 Frame (using Direct FSP Management) specific:
 
@@ -54,6 +56,10 @@ Turn power on.
 
 Turn power on to standby state
 
+=item B<-T>
+
+The value could be B<lpar> or B<fnm>. The tooltype value B<lpar> is for xCAT and B<fnm> is for CNM. The default value is "B<lpar>". For cold start in the large cluster, it will save a lot of time if the admins use "B<rpower> I<noderange> B<onstandby> B<-T> B<fnm>" to power on all the CECs from the management node through the B<fnm> connections.
+
 =item B<lowpower>
 
 Turn CEC to low power state (state EOCT). This is a disruptive operation which requires the CEC to be powered off prior to entering low power mode. And we can use power off command to get out of lowepower state.