diff --git a/perl-xCAT/xCAT/PPCdb.pm b/perl-xCAT/xCAT/PPCdb.pm
index 1b7868525..d1573a02e 100644
--- a/perl-xCAT/xCAT/PPCdb.pm
+++ b/perl-xCAT/xCAT/PPCdb.pm
@@ -44,6 +44,7 @@ sub add_ppc {
 
     my $hwtype   = shift;
     my $values   = shift;
+    my $not_overwrite = shift;
     my @tabs     = qw(ppc vpd nodehm nodelist nodetype); 
     my %db       = ();
     my %nodetype = (
@@ -84,6 +85,41 @@ sub add_ppc {
             $db{nodetype}->setNodeAttribs( $name,{nodetype=>$nodetype{$type}} );
             $db{nodetype}{commit} = 1;
         }
+        ###############################
+        # If cannot be overwroten, get
+        # old data firstly
+        ###############################
+        my $mgt;
+        my $cons;
+        if ( $not_overwrite)
+        {
+            my $enthash = $db{ppc}->getNodeAttribs( $name, [qw(hcp id pprofile parent)]);
+            if ( $enthash )
+            {
+                $server   = $enthash->{hcp} if ($enthash->{hcp});
+                $id       = $enthash->{id}  if ( $enthash->{id});
+                $pprofile = $enthash->{pprofile} if ( $enthash->{pprofile});
+                $parent   = $enthash->{parent} if ( $enthash->{parent});
+            }
+            $enthash = $db{nodehm}->getNodeAttribs( $name, [qw(mgt)]);
+            if ( $enthash )
+            {
+                $mgt= $enthash->{mgt} if ( $enthash->{mgt});
+                $cons= $enthash->{cons} if ( $enthash->{cons});
+            }
+            $enthash = $db{vpd}->getNodeAttribs( $name, [qw(mtm serial)]);
+            if ( $enthash )
+            {
+                $model = $enthash->{mtm} if ( $enthash->{mtm});
+                $serial= $enthash->{serial} if ( $enthash->{serial});
+            }
+        }
+        else
+        {
+            $mgt = $hwtype;
+            $cons = $hwtype;
+        }
+
         ###############################
         # Update ppc table
         ###############################
@@ -106,9 +142,9 @@ sub add_ppc {
             # Update nodehm table
             ###########################
             if($type =~ /^lpar$/){
-                $db{nodehm}->setNodeAttribs( $name, {mgt=>$hwtype,cons=>$hwtype} );
+                $db{nodehm}->setNodeAttribs( $name, {mgt=>$mgt,cons=>$cons} );
             } else {
-                $db{nodehm}->setNodeAttribs( $name, {mgt=>$hwtype} );
+                $db{nodehm}->setNodeAttribs( $name, {mgt=>$mgt} );
             }
             $db{nodehm}{commit} = 1;
         }
diff --git a/xCAT-server/lib/xcat/plugins/lsslp.pm b/xCAT-server/lib/xcat/plugins/lsslp.pm
index 6eae58aed..6ce1727d7 100644
--- a/xCAT-server/lib/xcat/plugins/lsslp.pm
+++ b/xCAT-server/lib/xcat/plugins/lsslp.pm
@@ -1584,10 +1584,10 @@ sub xCATdB {
 
             my $values = join( ",",
                lc($type),$name,$id,$model,$serial,$name,$prof,$frame,$ips );
-            xCAT::PPCdb::add_ppc( lc($type), [$values] );
+            xCAT::PPCdb::add_ppc( lc($type), [$values],1 );
         }
         elsif ( $type =~ /^(HMC|IVM)$/ ) {
-            xCAT::PPCdb::add_ppchcp( lc($type), $name );
+            xCAT::PPCdb::add_ppchcp( lc($type), $name,1 );
         }
         elsif ( $type =~ /^FSP$/ ) {
             ########################################
@@ -1666,7 +1666,7 @@ sub xCATdB {
 
             my $values = join( ",",
                lc($type),$name,$cageid,$model,$serial,$name,$prof,$frame,$ips );
-            xCAT::PPCdb::add_ppc( "fsp", [$values] );
+            xCAT::PPCdb::add_ppc( "fsp", [$values],1 );
         }
         elsif ( $type =~ /^(RSA|MM)$/ ) {
             xCAT::PPCdb::add_systemX( $type, $data );