diff --git a/perl-xCAT/xCAT/Utils.pm b/perl-xCAT/xCAT/Utils.pm
index 30fda8d1e..8c58dfa2e 100644
--- a/perl-xCAT/xCAT/Utils.pm
+++ b/perl-xCAT/xCAT/Utils.pm
@@ -3151,26 +3151,30 @@ sub noderangecontainsMn
 {
  my ($class, @noderange)=@_;
  # check if any node in the noderange is the Management Node return the
- # name 
- my $mname;
+ # name
+ my @mnames; # management node names in the database, members of __mgmtnode
  my $tab = xCAT::Table->new('nodelist');
  my @nodelist=$tab->getAllNodeAttribs(['node','groups']);
  foreach my $n (@nodelist) {
   if (defined($n->{'groups'})) {
    my @groups=split(",",$n->{'groups'});
    if ((grep (/__mgmtnode/,@groups))) {  # this is the MN
-      $mname=$n->{'node'};
-      last;
+     push @mnames,$n->{'node'};
    }
   }
  }
- if ($mname) {  # if Management Node defined in the database
-   if (grep(/^$mname$/, @noderange)) { # if MN in the noderange
-     return $mname;
-    } else {
-     return ;
+ my @MNs;  # management node names found the noderange
+ if (@mnames) { # if any Management Node defined in the database
+   foreach my $mn (@mnames) {
+     if (grep(/^$mn$/, @noderange)) { # if  MN in the noderange
+       push @MNs, $mn;
+     }
+   }
+   if (@MNs) { # management nodes in the noderange
+       return @MNs;
    }
  }
+ return;   # if no MN in the noderange, return nothing
 }
 
 =head3  filter_nodes