diff --git a/xCAT-server-2.0/sbin/xcatd b/xCAT-server-2.0/sbin/xcatd
index f771d6068..70795ce7e 100755
--- a/xCAT-server-2.0/sbin/xcatd
+++ b/xCAT-server-2.0/sbin/xcatd
@@ -12,8 +12,8 @@ use Time::HiRes qw(sleep);
 use Thread qw(yield);
 use xCAT::Client submit_request;
 my $clientselect = new IO::Select;
-#my $sslclients = 0; #THROTTLE
-#my $maxsslclients = 16; #default
+my $sslclients = 0; #THROTTLE
+my $maxsslclients = 16; #default
 
 sub xexit {
    while (wait() > 0) {
@@ -472,13 +472,13 @@ xCAT_monitoring::monitorctrl::start($$);
 
 my $peername;
 my $ssltimeout;
-#$SIG{CHLD} = \&ssl_reaper; #THROTTLE
+$SIG{CHLD} = \&ssl_reaper; #THROTTLE
 until ($quit) {
   next unless my $cnnection=$listener->accept;
   my $connection;
-  #while ($sslclients > $maxsslclients) { #THROTTLE
-  #    yield;
-  #}
+  while ($sslclients > $maxsslclients) { #THROTTLE
+      yield;
+  }
   my $child = xCAT::Utils->xfork(); #Yes we fork, IO::Socket::SSL is not threadsafe..
   
   unless (defined $child) {
@@ -486,7 +486,7 @@ until ($quit) {
   }
 
   if ($child == 0) {
-    #$SIG{CHLD} = \&generic_reaper; #THROTTLE
+    $SIG{CHLD} = \&generic_reaper; #THROTTLE
     $listener->close;
 
     $SIG{ALRM} = sub { $ssltimeout = 1; die; }; 
@@ -542,7 +542,7 @@ if ($inet6support) {
     service_connection($connection,$peername,$peerhost);
     xexit(0);
   }
-  #$sslclients++; #THROTTLE
+  $sslclients++; #THROTTLE
   $cnnection->close();
 }
 $listener->close;
diff --git a/xCAT/templates/e1350/nodepos.csv b/xCAT/templates/e1350/nodepos.csv
index eb87d68ab..f38f973f6 100644
--- a/xCAT/templates/e1350/nodepos.csv
+++ b/xCAT/templates/e1350/nodepos.csv
@@ -6,3 +6,4 @@
 42nodeperrack,"|\D+(\d+)|(1+(($1-1)/42))|","|\D+(\d+)|(($1-1)%42+1)|"
 20nodeperrack,"|\D+(\d+)|(1+(($1-1)/20))|","|\D+(\d+)|((($1-1)%20+1)*2-1)|"
 21nodeperrack,"|\D+(\d+)|(1+(($1-1)/21))|","|\D+(\d+)|((($1-1)%21+1)*2-1)|"
+"idataplex","|\D+(\d+)|(1+(($1-1)/84))|","|\D+(\d+)|(sprintf(""%c"",(65+2*((($1-1)/42)%2))))-(($1-1)%42+1)|",,,,"This creates U descriptions in the form A-1 to A-42 and C-1 to C-42"