Installing the Natural Development Server

This document describes how to install a Natural Development Server (product code NDV) in the runtime environment SMARTS on BS2000.

The following topics are covered:


For details, refer to the section Prerequisites.

Installation Medium

Content of the Development Server Distribution Medium

The installation medium contains the datasets listed in the table below. The sequence of the datasets and the number of library blocks needed are shown in the Software AG Product Delivery Report, which accompanies the installation medium.

Dataset Name Contents
APSvrs.LIB Contains the load modules and the procedures of the SMARTS server.
APSvrs.L0pp Patch-level of SMARTS (product code APS). The content of this library must be copied into the library APSvrs.LIB.
NDVvrs.MOD Contains the load modules of the Natural Development Server.
NDVvrs.JOBS Contains the Installation Job Control for those customers who want to install without using System Maintenance Aid (SMA).
NDVvrs.INPL Contains the transaction processor, the error messages of the transaction processor, and the sample programs required for using the tutorial. See First Steps with Natural Single Point of Development in the Natural Single Point of Development documentation.
NDVvrs.SYSF Contains the field definition table (FDT) of the Development Server File (the layout is identical with PRDvrs.SYSF provided with a Predict version as specified under Natural and Other Software AG Products in the corresponding Natural Release Notes for Mainframes).
NCFvrs.MOD Contains the load modules of the Natural Com-plete Interface (required for SMARTS).
NCFvrs.MAC Contains the macros of the Natural Com-plete Interface (required for SMARTS).

- where

vrs in a dataset name represents the version, release and system maintenance level of the product.

pp in a dataset name represents the patch level of the product.

For the currently applicable versions, refer to Empower at

Content of the Development Server JOBLIB

Naming Conventions

In the following text, the library name JOBLIB stands for

  • the example job library (NDVvrs.JOBS), if you are not using SMA, or

  • the SMA job library (see SMA parameter JOBLIB in SMA Parameter Group BASIC), if you are using SMA.

Software AG uses the following naming conventions for source elements in the library JOBLIB:

A<product-code><function> = Assembler sources

L<product-code>< function> = Instruction for TSOSLNK/BINDER

Important Elements of the Job Library

Element Description
NDV-SYSPARM SMARTS parameters for NDV. See also SMARTS SYSPARM Parameters.
NDV-CONFG NDV configuration parameters. See also NDV Configuration Parameters.
ANDVPARM Assembler source - Natural parameter module for NDV.
LNATSHAR Link instructions to link the Natural nucleus.
LNDVFRNT Link instructions to link the NDV front-end module.
START-NDV Procedure to start the NDV server.
STOP-NDV Procedure to stop the NDV server.
SHOW-SYSOUT Procedure to show the SYSOUT file of the FSIO task of NDV.

Installation Procedure

To install the Natural Development Server in a SMARTS environment on BS2000, perform the following steps:

Step 1: Load FDIC system file

(Job I050, Step 8403)

If you do not use Predict at all or if you have not yet migrated to a Predict version as specified under Natural and Other Software AG Products in the current Natural Release Notes for Mainframes, create the Development Server File by using the dataset NDVvrs.SYSF.

The layout of the Development Server File corresponds to the layout of the Predict dictionary file FDIC.

If you have a Predict version installed as specified under Natural and Other Software AG Products in the current Natural Release Notes for Mainframes, you can ignore this step.

Step 2: Assemble the Natural parameter module

(Job I055, Step 8420)

Assemble the source ANDVPARM which is contained in the library JOBLIB.

Step 3: Relink the Natural nucleus module

(Job I060, Step 3802)

This step is optional.

The Natural nucleus module must be relinked with the modules NAT3270 and NAT3279 if they have not been included yet. This is accomplished by using the source LNATSHAR which is contained in the library JOBLIB.

If you are using SMA, please refer to the SMA read-me file of NDVvrn (skeleton ##NDVvrn-README).

Step 4: Link the NDV front-end module

(Job I060, Steps 8410)

Link the NDV front-end module by using the source LNDVFRNT which is contained in the library JOBLIB.

Step 5: Load Natural objects, error messages and samples for NDV

(Job I061, Steps 8450)

During the loading of the NDV related objects with the Natural utility INPL, the assigned system file(s) FDIC and/or FSEC is/are initialized with NDV-specific information.

  • Using the INPL utility, load the objects from dataset NDVvrs.INPL onto your Natural system file (FNAT). The Natural profile parameter FDIC must have been set to point to your development server file.

  • The error messages are loaded.

  • The sample programs to use the tutorial (see First Steps with Natural Single Point of Development), are loaded to your Natural system file (FNAT).

Step 6: Create a PFS for print file/work file support

(Job I085, Step 8400)

The procedure CREATE-PFS is called to allocate and format a PFS file.

This procedure has to be supplied with the following parameters:

FILE-NAME The name of the container file.
FILE-SIZE The size of the container file. To be specified either in K for kilobytes or M for megabytes.
APS-LIB The SMARTS library where the format utility PFSUTIL resides.

See also PFS Description and Allocating and Configuring a SMARTS Portable File System at the end of this document.

Step 7: Copy DDMs and processing rules to FDIC

If you use a Predict system file FDIC as Development Server File (FDIC), ignore this step.

If a Predict version as specified under Natural and Other Software AG Products in the current Natural Release Notes for Mainframes has not been installed or if you do not use a Predict system file FDIC as Development Server File (FDIC), you have to copy the existing DDMs and processing rules to the Development Server File (FDIC), using the copy function of the Natural utility SYSMAIN.

Step 8: NDV clients must be defined to Natural Security

If Natural Security (NSC) is installed:

  • The NDV initial user ID (default ID is STARGATE) must be defined in Natural Security (NSC) with a valid default library. Refer also to NDV configuration parameter INITIAL_USERID in the section Development Server Configuration. Alternatively, you can define the Natural profile parameter AUTO=OFF (automatic logon) for NDV.

  • Each client user ID must be defined in Natural Security.

If the NDV initial user ID is not defined, the NDV server initialization aborts with a NAT0856 error message.

If a remote development client is not defined, the Map Environment dialog will return a Natural Security (NSC) error.

Make sure that a user who is defined in Natural Security has a default library or a private library defined. Otherwise, If he/she logs on to the server from an NDV client, an error message NAT0815 will occur.

Step 9: Debug a Natural batch job with Debug Attach for NaturalONE

Sample JCL - ISP Format

/SYSFILE SYSOUT=ATDEBUG.OUT                                
/SYSFILE SYSLST=ATDEBUG.LST                                
/FILE ADAPARM,DDLNKPAR                                     
/FILE NATvrs.MOD,LINK=BLSLIB01                             
/FILE NDVvrs.MOD,LINK=BLSLIB02                             
/FILE CMPRMIN.RMDBG,CMPRMIN                                
/FILE ADAvrs.MOD,DDLIB                                     

Sample JCL - SDF Format

/ASSIGN-SYSOUT TO=ATDEBUG.OUT                                          
/ASSIGN-SYSLST TO=ATDEBUG.LST                                          
/     *DISK(SHARED-UPDATE=*YES)          							1                                                   
/START-EXE-PROG F-F=*LI-E(L=NATvrs.MOD,EL=NATvrsBA,TYPE=L)              

1: Specifies the trace file. The SHARED-UPDATE option enables the user to lookup the trace file while the debug task is still running.

The Natural parameter file CMPRMIN.RMDBG for example has the following content:


If the Natural environment dependent nucleus is shared by various Natural applications that are running under TIAM, UTM or batch, NATADvrs has to be linked to each of the Natural environment dependent nuclei. For the assemblies of the Natural drivers this means, that the parameter LINK=(NATADBG) has to be specified to enable the BS2000 loader to find the load points of NATADvrs in the particular environment dependent nuclei.

Installation Verification

The following topics are covered below:

Map Environment Dialog

For information on how to map an environment, refer to the Natural Single Point of Development documentation, section First Steps with Natural SPoD, Local and Remote Environment, Connecting to a Development Server for the First Time.

Check Messages

BS2000 Operator Console

APSSVR0026-* Server NCFNAT41 started 
APSOPC0000-* SMARTServer is initialized


The following messages are displayed when parameter TRACE_LEVEL=31 was set:

Template session initialized 
Template runtime connected 
Template runtime terminated 
Template ready for clone 
Main listener activated 
Setup PAL environment successful 
Listener thread launched 01625028 
************ Server is up **************
Waiting for terminate event...

SMARTS Portable File System on BS2000

The following topics are covered below:

PFS Description

SMARTS PFS (Portable or POSIX File System) implements a file system, known from UNIX systems, in a mainframe environment. Basically, it consists of a container file, which comprises all (UNIX) files and a corresponding (logical) access method, which processes all requested I/O operations.

The container file has to be allocated and preformatted using the BS2000 procedure CREATE-PFS (described below).

The PFS maps all file names to a node of a directory tree within the physical container file. In the case of BS2000, this container file is a PAM file with a block size of 4 KB (STD,2).

Within Natural, the actual path is specified by a corresponding DEFINE WORK FILE statement in the program which executes work file or print file access.

Each node (subdirectory) is separated by a slash (/) from its parent. The highest level qualifies the file name.

Example 1:


Specifies: ROOT' => MISC => 'USER1 => 'TESTFILE


Example 2:


Specifies: ROOT' => TESTFILE2.W01

Allocating and Configuring a SMARTS Portable File System

The Natural server uses the SMARTS portable file system (PFS) as a data container for Natural work files, print files, temporary sort files and the editor work file. The SMARTS PFS is the only storage medium available for these files under SMARTS.

In order to be able to use the PFS for Natural files you have to configure Natural accordingly:

  • For work files or print files, specify the access method AM=SMARTS, using the Natural profile parameters WORK (Work-File Assignments) and/or PRINT (Print File Assignments).

  • For temporary sort files, specify the type of storage medium STORAGE=SMARTS, using the Natural profile parameter SORT (Control of Sort Program).

  • And to allocate the editor work file in the PFS, specify the work file mode FMODE=SM, using the Natural profile parameter EDBP (Software AG Editor Buffer Pool Definitions).

If you use one of these options, you have to configure your SMARTS to use a PFS.

Step 1: Allocate a PFS

The file PFS.TST should not exist before the allocation procedure is executed, otherwise DMS error DMS0683 will occur.

The initialization can be done by using the following procedure:

/   APS-LIB=APSvrs.LIB) 

Step 2: Configure SMARTS

In the SMARTS SYSPARM configuration file, add the following lines: