Application Replication Parallel Execution, Separate Data Files

Introduction

This example describes how to replicate an application environment with unique file or data set names for each iteration and to allow parallel execution without file contention between the replicated environments. The scope of effort for replicating an application is much less if the primary (or original) version of an application was designed with the requirement for replication. If the primary version of an application was designed without any consideration for replication and parallel execution then it can be a significant effort to retrofit this capability.

We have made a significant effort to ensure the documents and software technologies are correct and accurate. We reserve the right to make changes without notice at any time. The function delivered in this version is based upon the enhancement requests from a specific group of users. The intent is to provide changes as the need arises and in a timeframe that is dependent upon the availability of resources.

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SimoTime Technologies and Services
All Rights Reserved

Preparation

WIP

Preparation, Create the Application Environment and Directory Structure

WIP

Preparation, Create and Populate the Catalog

WIP

Preparation, Define the Partitioned Data Sets (PDS's)

WIP

Preparation, Setting the Shared Variables or Substitution Parameters

Setting the shared variables

The ENV1BASE.CMD is a Windows Command file that is used to set shared variable at the System level.

The SETPARMS.INC is a JCL INCLUDE member that is used to set the JCL substitution variables for batch jobs.

The ENVPARMS.CMD is a Windows Command file that is used to set the shared variables when running jobs in the native Windows environment outside of Enterprise Server. The jobs could include the execution of COBOL programs.

The JCL Member

This sample JCL member (CUSTDDV1.jcl) is a two step job. The first job step (REPROREP) will create a new temporary data set. The second job step (KSDSMAKE) will use the temporary data set to DELETE/DEFINE a VSAM Cluster with the new name.

//CUSTDDV1 JOB SIMOTIME,CLASS=1,MSGCLASS=0,NOTIFY=&SYSUID
//* *******************************************************************
//*       CUSTDDV1.JCL - a JCL Member for Batch Job Processing        *
//*       This JCL Member is provided by SimoTime Technologies        *
//*           (C) Copyright 1987-2018 All Rights Reserved             *
//*             Web Site URL:   http://www.simotime.com               *
//*                   e-mail:   helpdesk@simotime.com                 *
//* *******************************************************************
//*
//* Text   - Create an empty VSAM, KSDS data set using IDCAMS.
//* Author - SimoTime Technologies
//* Date   - January 24, 1996
//*
//* This job will create a VSAM, KSDS data set. The key is twelve
//* characters starting at the first position in the record.
//* The record length is 512 characters.
//*
//* This set of programs will run on a mainframe under MVS or on a
//* Personal Computer with Windows and Micro Focus Mainframe Express.
//*
//* *******************************************************************
//* Step 1 of 2, Prepare to Create a VSAM Cluster.
//*
// JCLLIB  ORDER=SIMOTIME.PDS.JCLINCS
// INCLUDE MEMBER=SETPARMS
//*
//REPROREP EXEC PGM=RR80RSEQ,PARM=&DSNAME01
//GETRS080 DD  DISP=SHR,DSN=&DSNAME01..PDS.PARMLIB(CUSTDD01)
//PUTRS080 DD  DSN=&&CAMSINFO,
//             DISP=(NEW,CATLG,DELETE),
//             STORCLAS=MFI,
//             SPACE=(TRK,5),
//             DCB=(RECFM=FB,LRECL=80,DSORG=PS)
//SYSOUT   DD  SYSOUT=*
//*
//* *******************************************************************
//* Step 2 of 2, Create the VSAM Cluster.
//*
//KSDSMAKE EXEC PGM=IDCAMS
//SYSPRINT DD  SYSOUT=*
//SYSIN    DD  DISP=SHR,DSN=&&CAMSINFO
//SYSOUT   DD  SYSOUT=*
//*

The JCL INCLUDE Member

This sample JCL INCLUDE member (SETPARMS.inc) provides a set of substitution values. Its purpose is to provide a single point to define variables that are used by various jobs.

//* *******************************************************************
//*    This JCL Include Member is provided by SimoTime Technologies   *
//*           (C) Copyright 1987-2018 All Rights Reserved             *
//*             Web Site URL:   http://www.simotime.com               *
//*                   e-mail:   helpdesk@simotime.com                 *
//* *******************************************************************
//*
//* Subject: SET a group of shared substitution parameters
//* Author:  SimoTime Technologies
//* Date:    January 1,1998
//*
//       SET   DSNAME01=MIFODATA
//       SET   DSNAME02=DATA
//       SET   DSNAME03=WORKFILE
//*
//* *******************************************************************
//*

Summary

This example describes how to replicate an application environment with unique file or data set names for each iteration and to allow parallel execution without file contention between the replicated environments. This document may be used as a tutorial for new programmers or as a quick reference for experienced programmers.

In the world of programming there are many ways to solve a problem. This document and the links to other documents are intended to provide a greater awareness of the Data Management and Application Processing alternatives.

The documentation and software were developed and tested on systems that are configured for a SIMOTIME environment based on the hardware, operating systems, user requirements and security requirements. Therefore, adjustments may be needed to execute the jobs and programs when transferred to a system of a different architecture or configuration.

SIMOTIME Services has experience in moving or sharing data or application processing across a variety of systems. For additional information about SIMOTIME Services or Technologies please send an e-mail to: helpdesk@simotime.com or call 415 883-6565. We appreciate hearing from you.

Software Agreement and Disclaimer

Permission to use, copy, modify and distribute this software, documentation or training material for any purpose requires a fee to be paid to SimoTime Technologies. Once the fee is received by SimoTime the latest version of the software, documentation or training material will be delivered and a license will be granted for use within an enterprise, provided the SimoTime copyright notice appear on all copies of the software. The SimoTime name or Logo may not be used in any advertising or publicity pertaining to the use of the software without the written permission of SimoTime Technologies.

SimoTime Technologies makes no warranty or representations about the suitability of the software, documentation or learning material for any purpose. It is provided "AS IS" without any expressed or implied warranty, including the implied warranties of merchantability, fitness for a particular purpose and non-infringement. SimoTime Technologies shall not be liable for any direct, indirect, special or consequential damages resulting from the loss of use, data or projects, whether in an action of contract or tort, arising out of or in connection with the use or performance of this software, documentation or training material.

Downloads and Links

This section includes links to documents with additional information that are beyond the scope and purpose of this document. The first group of documents may be available from a local system or via an internet connection, the second group of documents will require an internet connection.

Note: A SimoTime License is required for the items to be made available on a local system or server.

Current Server or Internet Access

The following links may be to the current server or to the Internet.

Note: The latest versions of the SimoTime Documents and Program Suites are available on the Internet and may be accessed using the icon. If a user has a SimoTime Enterprise License the Documents and Program Suites may be available on a local server and accessed using the icon.

    Explore the JCL Connection for more examples of JCL functionality with programming techniques and sample code.

    Explore the COBOL Connection for more examples of COBOL programming techniques and sample code.

    Explore An Enterprise System Model that describes and demonstrates how Applications that were running on a Mainframe System and non-relational data that was located on the Mainframe System were copied and deployed in a Microsoft Windows environment with Micro Focus Enterprise Server.

    Explore The ASCII and EBCDIC Translation Tables. These tables are provided for individuals that need to better understand the bit structures and differences of the encoding formats.

    Explore The File Status Return Codes to interpret the results of accessing VSAM data sets and/or QSAM files.

Internet Access Required

The following links will require an internet connection.

A good place to start is The SimoTime Home Page for access to white papers, program examples and product information. This link requires an Internet Connection

Explore The Micro Focus Web Site for more information about products and services available from Micro Focus. This link requires an Internet Connection.

Glossary of Terms

    Explore the Glossary of Terms for a list of terms and definitions used in this suite of documents and white papers.

Comments or Feedback

This document was created and is copyrighted and maintained by SimoTime Technologies.

If you have any questions, suggestions, comments or feedback please call or send an e-mail to: helpdesk@simotime.com

We appreciate hearing from you.

Company Overview

SIMOTIME Technologies was founded in 1987 and is a privately owned company. We specialize in the creation and deployment of business applications using new or existing technologies and services. We have a team of individuals that understand the broad range of technologies being used in today's environments. Our customers include small businesses using Internet technologies to corporations using very large mainframe systems.

Quite often, to reach larger markets or provide a higher level of service to existing customers it requires the newer Internet technologies to work in a complementary manner with existing corporate mainframe systems. We specialize in preparing applications and the associated data that are currently residing on a single platform to be distributed across a variety of platforms.

Preparing the application programs will require the transfer of source members that will be compiled and deployed on the target platform. The data will need to be transferred between the systems and may need to be converted and validated at various stages within the process. SIMOTIME has the technology, services and experience to assist in the application and data management tasks involved with doing business in a multi-system environment.

Whether you want to use the Internet to expand into new market segments or as a delivery vehicle for existing business functions or need assistance with converting non-relational data structures simply give us a call at 415 883-6565 or check the web site at http://www.simotime.com