The Entire System Server Interface is required if the product Entire System Server is to be used. The Entire System Server Interface is part of Natural and no extra installation is needed.
Additionally, Natural provides the libraries SYSNPE and
                            SYSNPR.
               
SYSNPE is the Entire System Server online tutorial
                            which is provided as a starting help for Entire System Server users. For more
                            information about Entire System Server, see the Entire System Server
                            documentation. 
               
The library SYSNPR contains the program
                            CHANGEDB which is used to change the database ID of the Entire
                            System Server DDMs.
               
This document covers the following topics:
The Entire System Server Interface provides access to Entire System Server on z/OS, z/VSE and BS2000 via Entire Net-Work. For full support of the Entire System Server Interface, Entire Net-Work Version 5.8.1 or above is required on the mainframe platforms.
The Entire System Server Interface is not active if you use the
                              standard Natural configuration settings. The value of the Entire System Server
                              Interface database (Natural profile parameter
                              ESXDB) is
                              set to 0 by default. To use the Entire System Server Interface you
                              have to set the value of the parameter ESXDB to
                              148 using the Configuration
                                 Utility. 
               
In the Configuration Utility, the parameter
                              ESXDB is assigned in the parameter group
                              Product
                                    Configuration of a parameter file. 
               
Tip:
Locate this parameter by searching for
                                 "ESXDB". See
                                 Finding a
                                    Parameter in the Configuration
                                    Utility documentation for further information.
                  
ESXDB specifies the database ID used for
                              the DDMs of Entire System Server. This DBID does not specify the target DBID of
                              Entire System Server requests but tells Natural which DBID is used for the
                              cataloged Entire System Server DDMs. The effective Entire System Server target
                              DBID will be specified with the NODE field which is part of all
                              Entire System Server DDMs.
               
Important:
Change the value of ESXDB to
                                 148 to run Natural with Entire System Server Interface support.
                                 All Entire System Server DDMs are cataloged with DBID 148.
                  
After starting Natural again, you may access Entire System Server nodes running on the mainframes via Entire Net-Work.
The customization of Entire System Server Interface supports the modification of the Entire System Server DDMs only.
The library SYSNPR contains the program
                              CHANGEDB which is used to modify the database ID of all Entire
                              System Server DDMs. You will find all Entire System Server DDMs in the library
                              SYSNPE. The database ID entered as a new DBID value in the program
                              CHANGEDB must also be specified as the value of the Entire System
                              Server Interface database parameter (ESXDB) in the
                              Configuration Utility.