diff --git a/perl-xCAT/xCAT/Schema.pm b/perl-xCAT/xCAT/Schema.pm
index e50347dff..170ecf3b3 100644
--- a/perl-xCAT/xCAT/Schema.pm
+++ b/perl-xCAT/xCAT/Schema.pm
@@ -735,15 +735,15 @@ servicenode => {
     table_desc => 'List of all Service Nodes and services that will be set up on the Service Node.',
  descriptions => {
   node => 'The hostname of the service node as known by the Management Node.',
-  nameserver => 'Do we set up DNS on this service node? Valid values:yes or 1, no or 0.',
-  dhcpserver => 'Do we set up DHCP on this service node? Not supported on AIX. Valid values:yes or 1, no or 0.',
-  tftpserver => 'Do we set up TFTP on this service node? Not supported on AIX. Valid values:yes or 1, no or 0.',
+  nameserver => 'Do we set up DNS on this service node? Valid values:yes or 1, no or 0. If yes, creates named.conf file with forwarding to the management node. Starts named. ',
+  dhcpserver => 'Do we set up DHCP on this service node? Not supported on AIX. Valid values:yes or 1, no or 0. If yes, runs makedhcp -n.',
+  tftpserver => 'Do we set up TFTP on this service node? Not supported on AIX. Valid values:yes or 1, no or 0. If yes, configures and starts atftp.',
   nfsserver => 'Do we set up file services (HTTP,FTP,or NFS) on this service node? For AIX will only setup NFS, not HTTP or FTP. Valid values:yes or 1, no or 0.',
-  conserver => 'Do we set up Conserver on this service node?  Valid values:yes or 1, no or 0.',
-  monserver => 'Is this a monitoring event collection point? Valid values:yes or 1, no or 0.',
+  conserver => 'Do we set up Conserver on this service node?  Valid values:yes or 1, no or 0. If yes, configures and starts conserver daemon.',
+  monserver => 'Not used.  Is this a monitoring event collection point? Valid values:yes or 1, no or 0.',
   ldapserver => 'Do we set up ldap caching proxy on this service node? Not supported on AIX.  Valid values:yes or 1, no or 0.',
-  ntpserver => 'Not used. Use setupntp postscript.  Do we set up a ntp server on this service node? Valid values:yes or 1, no or 0.',
-  ftpserver => 'Do we set up a ftp server on this service node? Not supported on AIX Valid values:yes or 1, no or 0.',
+  ntpserver => 'Not used. Use setupntp postscript to setup a ntp server on this service node? Valid values:yes or 1, no or 0.',
+  ftpserver => 'Do we set up a ftp server on this service node? Not supported on AIX Valid values:yes or 1, no or 0. If yes, configure and start vsftpd.',
   nimserver => 'Not used. Do we set up a NIM server on this service node? Valid values:yes or 1, no or 0.',
   ipforward => 'Do we set up ip forwarding on this service node? Valid values:yes or 1, no or 0.',