diff --git a/xCAT-client/bin/pping b/xCAT-client/bin/pping
index e99b5fd2f..03ba8b7ef 100755
--- a/xCAT-client/bin/pping
+++ b/xCAT-client/bin/pping
@@ -12,6 +12,7 @@ use strict;
 use lib "$::XCATROOT/lib/perl";
 
 use xCAT::Utils;
+use xCAT::TableUtils;
 use POSIX qw(:signal_h :errno_h :sys_wait_h);
 use IO::Socket::SSL;
 use XML::Simple;
@@ -133,7 +134,7 @@ foreach my $interf (@interfaces) {
 
 sub fping_pping {
 	my $nodes = shift;
-        my $master = xCAT::Utils->get_site_Master();
+        my $master = xCAT::TableUtils->get_site_Master();
         my $masterip = xCAT::NetworkUtils->getipaddr($master);
         if ($masterip =~ /:/) #IPv6, needs fping6 support
         {
diff --git a/xCAT-client/bin/xdsh b/xCAT-client/bin/xdsh
index bb67d85f4..f832f34cf 100644
--- a/xCAT-client/bin/xdsh
+++ b/xCAT-client/bin/xdsh
@@ -18,6 +18,7 @@ use Getopt::Long;
 require xCAT::MsgUtils;
 require xCAT::DSHCLI;
 use xCAT::Utils;
+use xCAT::TableUtils;
 use xCAT::RemoteShellExp;
 require xCAT::Client;
 my $bname = basename($0);
@@ -270,7 +271,7 @@ sub parse_args_xdsh
 
         # get the directories on the servicenode to put the  files in
         my $defaultsyndir = "/var/xcat/syncfiles";
-        my @syndir        = xCAT::Utils->get_site_attribute("SNsyncfiledir");
+        my @syndir        = xCAT::TableUtils->get_site_attribute("SNsyncfiledir");
         my $synfiledir;
         if ($syndir[0])
         {
@@ -282,7 +283,7 @@ sub parse_args_xdsh
         }
         # for append function
         my $defaultnodesyndir = "/var/xcat/node/syncfiles";
-        my @syndir2       = xCAT::Utils->get_site_attribute("nodesyncfiledir");
+        my @syndir2       = xCAT::TableUtils->get_site_attribute("nodesyncfiledir");
         my $synfiledir2;
         if ($syndir2[0])
         {
diff --git a/xCAT-rmc/scripts/logeventtoteal b/xCAT-rmc/scripts/logeventtoteal
index 4a411ccd8..d95755b96 100755
--- a/xCAT-rmc/scripts/logeventtoteal
+++ b/xCAT-rmc/scripts/logeventtoteal
@@ -13,6 +13,7 @@ use strict;
 use Getopt::Std;
 use POSIX qw(strftime);
 use xCAT::Utils;
+use xCAT::TableUtils;
 use xCAT::MsgUtils;
 use IO::File;
 use TEAL::Semaphore;
@@ -100,7 +101,7 @@ if (!$batch) { #handle single event
     }
 }    
 
-my ($rc, $msg)=xCAT::Utils->logEventsToTealDatabase(\@a);
+my ($rc, $msg)=xCAT::TableUtils->logEventsToTealDatabase(\@a);
 if ($rc) {
    xCAT::MsgUtils->message('S', "logeventtoteal:$msg. The condition is $condname. The response is $respname.\n");
 } else {
diff --git a/xCAT-server/bin/replaycons b/xCAT-server/bin/replaycons
index 65f2ed5a2..26d0213a2 100755
--- a/xCAT-server/bin/replaycons
+++ b/xCAT-server/bin/replaycons
@@ -9,6 +9,9 @@ use lib "$::XCATROOT/lib/perl";
 
 use strict;
 use xCAT::Table;
+use xCAT::Utils;
+use xCAT::TableUtils;
+use xCAT::NetworkUtils;
 use xCAT::MsgUtils;
 use Getopt::Long;
 
@@ -69,7 +72,7 @@ if ($hmtab) {
 my $file = "/var/log/consoles/$node";
 
 #if has conserver, goto conserver the execute replaycons command
-my @hostinfo=xCAT::Utils->determinehostname();
+my @hostinfo=xCAT::NetworkUtils->determinehostname();
 my %iphash=();
 foreach(@hostinfo) {$iphash{$_}=1;}
 if (($conserver) && ($iphash{$conserver} != 1)) {
diff --git a/xCAT-server/lib/xcat/plugins/ipmi.pm.legacy b/xCAT-server/lib/xcat/plugins/ipmi.pm.legacy
index f0a5cf9bb..1313d8ee0 100644
--- a/xCAT-server/lib/xcat/plugins/ipmi.pm.legacy
+++ b/xCAT-server/lib/xcat/plugins/ipmi.pm.legacy
@@ -18,6 +18,8 @@ use xCAT::SPD qw/decode_spd/;
 use POSIX qw(ceil floor);
 use Storable qw(store_fd retrieve_fd thaw freeze);
 use xCAT::Utils;
+use xCAT::TableUtils;
+use xCAT::ServiceNodeUtils;
 use xCAT::SvrUtils;
 use xCAT::Usage;
 use Thread qw(yield);
@@ -6050,7 +6052,7 @@ sub preprocess_request {
   # find service nodes for requested nodes
   # build an individual request for each service node
   my $service  = "xcat";
-  my $sn = xCAT::Utils->get_ServiceNode($noderange, $service, "MN");
+  my $sn = xCAT::ServiceNodeUtils->get_ServiceNode($noderange, $service, "MN");
 
   # build each request for each service node
 
diff --git a/xCAT-server/lib/xcat/plugins/rhevm.pm b/xCAT-server/lib/xcat/plugins/rhevm.pm
index a0a747694..fbb700703 100644
--- a/xCAT-server/lib/xcat/plugins/rhevm.pm
+++ b/xCAT-server/lib/xcat/plugins/rhevm.pm
@@ -49,6 +49,9 @@ use HTTP::Request;
 use XML::LibXML;
 
 use xCAT::Table;
+use xCAT::Utils;
+use xCAT::TableUtils;
+use xCAT::ServiceNodeUtils;
 use xCAT::MsgUtils;
 
 sub handled_commands{
@@ -225,7 +228,7 @@ sub preprocess_request {
     # The dispatch depends on the rhevm. Since the operation is in serial, so no need to use the service node.
     my @requests;
     my @rhevms=keys(%rhevm_hash);
-    my $sn = xCAT::Utils->get_ServiceNode(\@rhevms, 'xcat', "MN");
+    my $sn = xCAT::ServiceNodeUtils->get_ServiceNode(\@rhevms, 'xcat', "MN");
     foreach my $snkey (keys %$sn){
         my $reqcopy = {%$request};
         $reqcopy->{'_xcatdest'} = $snkey;
@@ -401,7 +404,7 @@ sub copycd {
     }
 
     my $installroot = "/install";
-    my @entries =  xCAT::Utils->get_site_attribute("installdir");
+    my @entries =  xCAT::TableUtils->get_site_attribute("installdir");
     my $t_entry = $entries[0];
     if ( defined($t_entry) ) {
         $installroot = $t_entry;
@@ -485,7 +488,7 @@ sub mkinstall {
     my %doneimgs;
 
     my $installdir = "/install";
-    my @ents = xCAT::Utils->get_site_attribute("installdir");
+    my @ents = xCAT::TableUtils->get_site_attribute("installdir");
     my $site_ent = $ents[0];
     if( defined($site_ent) )
     {
@@ -493,7 +496,7 @@ sub mkinstall {
     }
 
     my $tftpdir = "/tftpboot";
-    @ents = xCAT::Utils->get_site_attribute("tftpdir");
+    @ents = xCAT::TableUtils->get_site_attribute("tftpdir");
     $site_ent = $ents[0];
     if( defined($site_ent) )
     {
@@ -732,7 +735,7 @@ sub addhost {
     my $callback = shift;
     my $rhevm_hash = shift;
 
-    my @domain = xCAT::Utils->get_site_attribute("domain");
+    my @domain = xCAT::TableUtils->get_site_attribute("domain");
     if (!$domain[0]) {
         my $rsp;
         push @{$rsp->{data}}, "The site.domain must be set to enable the rhev support.";
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/genimage b/xCAT-server/share/xcat/netboot/ubuntu/genimage
index 97aa75d51..c55749728 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/genimage
+++ b/xCAT-server/share/xcat/netboot/ubuntu/genimage
@@ -12,6 +12,7 @@ use File::Find;
 use Getopt::Long;
 use Cwd qw(realpath);
 use xCAT::Utils;
+use xCAT::TableUtils;
 use File::Temp qw/mkdtemp/;
 
 use FindBin;
@@ -402,7 +403,7 @@ unless ($onlyinitrd) {
    # ignore any return code
 
    # Add the local repo from MN
-   my $master = xCAT::Utils->get_site_Master();
+   my $master = xCAT::TableUtils->get_site_Master();
    open($aptconfig,">","$rootimg_dir/etc/apt/sources.list");
    print $aptconfig "deb http://$master$installroot/$osver/$arch/ $dist main\n";
    close($aptconfig);
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/genimage.old b/xCAT-server/share/xcat/netboot/ubuntu/genimage.old
index 174195264..3928ac1bb 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/genimage.old
+++ b/xCAT-server/share/xcat/netboot/ubuntu/genimage.old
@@ -12,6 +12,7 @@ use File::Find;
 use Getopt::Long;
 use Cwd qw(realpath);
 use xCAT::Utils;
+use xCAT::TableUtils;
 #use strict;
 Getopt::Long::Configure("bundling");
 Getopt::Long::Configure("pass_through");
@@ -324,7 +325,7 @@ unless ($onlyinitrd) {
    # ignore any return code
 
    # Add the local repo from MN
-   my $master = xCAT::Utils->get_site_Master();
+   my $master = xCAT::TableUtils->get_site_Master();
    open($aptconfig,">","$rootimg_dir/etc/apt/sources.list");
    print $aptconfig "deb http://$master$installroot/$osver/$arch/ $dist main\n";
    close($aptconfig);
diff --git a/xCAT-server/share/xcat/tools/rmblade b/xCAT-server/share/xcat/tools/rmblade
index c49cf9e0f..ad329b8ef 100755
--- a/xCAT-server/share/xcat/tools/rmblade
+++ b/xCAT-server/share/xcat/tools/rmblade
@@ -14,6 +14,7 @@ BEGIN
 
 use lib "$::XCATROOT/lib/perl";
 use xCAT::Utils;
+use xCAT::TableUtils;
 use strict;
 use Socket; # for name resolution
 
@@ -21,7 +22,7 @@ my $ip='';
 my $mm='';
 my $slot='';
 my $log = "/var/log/xcatsnmp";
-my $tftpdir = xCAT::Utils->getTftpDir();
+my $tftpdir = xCAT::TableUtils->getTftpDir();
 
 
 open(FILE,">>$log") or die "Can't open log!!!";
diff --git a/xCAT-server/share/xcat/tools/rmnodecfg b/xCAT-server/share/xcat/tools/rmnodecfg
index 990374392..e90b48b76 100755
--- a/xCAT-server/share/xcat/tools/rmnodecfg
+++ b/xCAT-server/share/xcat/tools/rmnodecfg
@@ -11,6 +11,7 @@ BEGIN
 
 use lib "$::XCATROOT/lib/perl";
 use xCAT::Utils;
+use xCAT::TableUtils;
 use strict;
 use Socket;
 
@@ -20,7 +21,7 @@ if(! $blades) {
   exit; 
 }
 
-my $tftpdir = xCAT::Utils->getTftpDir();
+my $tftpdir = xCAT::TableUtils->getTftpDir();
 
 foreach my $blade (`/opt/xcat/bin/nodels $blades`){
   chomp($blade);