This document describes the prerequisites that apply when you install a Natural Development Server (product code NDV) on a mainframe computer.
The following topics are covered:
The currently applicable version of Natural for Mainframes must be installed; refer to Empower at https://empower.softwareag.com/.
Important:
Any user-written exits not written in Natural and used
within a Natural Development Server environment must be reentrant and
thread-safe (capable to run in a multi-tasking environment).
If you are using Predict and you have to migrate to a Predict version specified under Natural and Other Software AG Products in the current Natural Release Notes for Mainframes, you are strongly recommended to migrate to the newer Predict version before you install the Natural Development Server.
Important:
If you do not migrate to a Predict version specified
under Natural and Other Software AG Products in the current
Natural Release Notes for Mainframes before starting the
Natural Development Server installation, you will have to define a new Natural
system file FNAT and a new Development Server File
(FDIC). The current version of Natural for Mainframes and the
desired additional products must have been loaded on the Natural system file
FNAT before you start the installation of the Natural Development
Server.
To use other Software AG products in conjunction with the Natural Development Server, refer to the section Software AG Product Versions Required with Natural in the current Natural Release Notes for Mainframes for the required version.
The Software AG Editor must be installed. You are recommended to set the size of the editor buffer pool to 1024 KB.
If you are using System Maintenance Aid (SMA), the necessary
modules are linked when the SMA parameter SAG-EDITOR is
set to Y (Yes). This is the
default.
If you are installing without SMA, see Installation for z/OS, Installing Software AG Editor.
The prerequisites for the operation of a remote development client must be fulfilled in addition. Natural for Windows or NaturalONE must have been installed on the PC client. For information on the applicable version of Natural for Windows, refer to Empower at https://empower.softwareag.com/.
Natural Development Server Version 8.3 is compatible with all supported versions of Natural for Mainframes, Natural for Windows and NaturalONE.
Note:
For information about plug-ins and add-on products available,
refer to Empower at
https://empower.softwareag.com/ and the
section Natural and Other Software AG Products in the
current Natural Release Notes for Mainframes.
In addition to the general prerequisites described above, the following operating-system-specific prerequisites apply:
z/OS must be installed.
Version as specified under Operating/Teleprocessing Systems Required in the current Natural Release Notes for Mainframes.
To prevent the formation of endless loops in user programs
running under NDV, specify a reasonable value for Natural profile parameter
MT (Maximum CPU Time).
The Natural Development Server must have been installed on z/OS.
In addition, the following prerequisites and restrictions apply to the Natural Development Server CICS Adapter:
CICS must be installed.
Version as specified under Operating/Teleprocessing Systems Required in the current Natural Release Notes for Mainframes.
CICS TCP/IP and the CICS listener must be enabled. Refer to CICS TCP/IP Socket Interface Guide.
The current version of Natural for Mainframes and the corresponding Natural CICS Interface must be installed.
Natural must not be used with the Natural profile parameter
ADAMODE (Adabas Interface Mode) set to 0;
this settings would cause an excessive number of Adabas user queue elements
(UQE) per Natural session.
With the NDV CICS Adapter, it is recommended to use
ADAMODE=1 or ADAMODE=2. If you have to use
ADAMODE=0 or ADAMODE=3, then it is recommended to use
the configuration parameters RFE_CICS_TA_INIT_TOUT
and RFE_CICS_KEEP_TA in the
Natural Development Server configuration file.
The Natural Development Server must have been installed on z/OS.
In addition, the following prerequisites and restrictions apply to the Natural Development Server IMS Adapter:
IMS TM must be installed.
Version as specified under Operating/Teleprocessing Systems Required in the current Natural Release Notes for Mainframes.
The IMS listener must be enabled. Refer to z/OS Communications Server IP IMS Socket Guide.
The current version of Natural for Mainframes and the corresponding Natural IMS TM Interface must be installed.
Natural must not be used with the Natural profile parameter
ADAMODE (Adabas Interface Mode) set to 0;
this setting would cause an excessive number of Adabas user queue elements
(UQE) per Natural session.
With the NDV IMS Adapter, it is recommended to use
ADAMODE=1 or ADAMODE=2.