IMS in Parallel Sysplex. Volume 2, Planning the IMSplex / Jouko Jantti et al.

Format:

Book

Author/Creator:

Jäntti, Jouko.

Contributor:

Stillwell, Bill.

Wicks, Gary.

Series:

IBM redbooks.

Redbooks

Language:

English

Subjects (All):

Parallel computers.

Database management.

Physical Description:

xii, 194 p. : ill.

Edition:

1st ed.

Other Title:

Planning the IMSplex

Place of Publication:

San Jose, CA : IBM International Technical Support Organization, 2003.

Language Note:

English

System Details:

text file

Summary:

This IBM Redbooks publication is the second volume of a series of redbooks called IMS in the Parallel Sysplex. These redbooks describe how IMS exploits the Parallel Sysplex functions and how to plan for, implement, and operate IMS systems working together in a Parallel Sysplex. We use the term IMSplex to refer to multiple IMSs, which are cooperating with each other in a Parallel Sysplex environment to process a common shared workload. Although we generally think of an IMSplex in terms of online environments, an IMSplex can include batch IMS jobs as well as IMS utilities. IMS in the Parallel Sysplex, Volume I: Reviewing the IMSplex Technology, SG24-6908 described the Parallel Sysplex and how IMS exploits the Parallel Sysplex to provide user services including data sharing, shared queues, VTAM generic resources, automatic restart management (ARM), and systems management functions. When migrating an IMS system from a single, non-sharing environment to one which invokes some or all of these services, or even when incorporating additional function into an existing IMSplex (for example, upgrading a data sharing system to also use shared queues), the migration process must be carefully planned. Many decisions must be made, compromises made, perhaps even some application or database changes made. There will be changes to system definition and to operational procedures. This book addresses the development of the migration plan and identifies some of the steps and considerations you might encounter when developing the plan. The result of this exercise is not to perform any of the implementation tasks but to identify those tasks which must be done and to create a plan for accomplishing them. For example, the plan can identify as a task the establishment of a naming convention for system data sets. The naming convention itself is not a part of the plan, but is a result of implementing the plan. In this book we present planning considerations for the IMSplex. Separate chapters are devoted to: -Block level data sharing -Shared queues -Connectivity -Systems management -The overall IMSplex environment The other volumes in this series are: -IMS in the Parallel Sysplex, Volume I: Reviewing the IMSplex Technology, SG24-6908 -IMS in the Parallel Sysplex, Volume III: IMSplex Implementation and Operations, SG24-6929

Contents:

Front cover

Contents

Notices

Trademarks

Preface

The team that wrote this redbook

Become a published author

Comments welcome

Chapter 1. Introduction to IMSplex planning

1.1 Planning for migration

1.1.1 Planning phase

1.1.2 Preparation phase

1.1.3 Implementation phase

1.1.4 Operational phase

1.2 Planning phase

1.2.1 Understand the existing environment

1.2.2 Define and redefine the target environment

1.2.3 Define degraded mode environment

1.2.4 Develop the plan

1.3 Preparation phase

1.4 Implementation phase

1.5 Operational phase

1.6 Now what?

Chapter 2. Introduction to the Parallel Sysplex

2.1 Introduction

2.2 What is a Parallel Sysplex?

2.2.1 Some components and terminology of a Parallel Sysplex

2.2.2 OS/390 component and subsystem software

2.3 Sysplex services

2.4 Sysplex services for communications

2.4.1 XCF groups

2.4.2 XCF group services

2.4.3 XCF signaling services

2.4.4 XCF monitoring services

2.5 Sysplex services for recovery

2.5.1 Sysplex failure management

2.5.2 Automatic Restart Manager (ARM)

2.6 Sysplex services for data sharing

2.6.1 Structures, connectors, and services

2.6.2 Connectors and connection services

2.6.3 Cache structures and cache services

2.6.4 Lock structures and lock services

2.6.5 List structures and list services

2.7 Other connection services

2.7.1 Structure delete

2.7.2 Structure event notification

2.7.3 Structure rebuild

2.7.4 Structure alter

2.8 Other sysplex services

2.9 Objective of Parallel Sysplex development

2.9.1 Benefits of a Parallel Sysplex configuration

2.10 IMS in the Parallel Sysplex

Chapter 3. Planning for block level data sharing

3.1 Block level data sharing

3.1.1 IMSplex data sharing components

3.2 Objectives and expectations.

3.2.1 Objectives

3.2.2 Expectations

3.3 Functional planning

3.3.1 Data sharing function

3.3.2 Special application considerations

3.3.3 Dealing with the side effects

3.4 Configuration, security, implementation, and operations

3.5 Data sharing planning summary

Chapter 4. Shared queues planning considerations

4.1 IMS shared queues

4.1.1 Shared queues components

4.2 Objectives and expectations

4.2.1 Objectives

4.2.2 Expectations

4.3 Functional planning

4.3.1 Planning considerations for shared queues functionality

4.3.2 Sizing the shared queues structures

4.4 Configuration, security, implementation, and operations

Chapter 5. Planning for the Common Service Layer

5.1 The Common Service Layer

5.1.1 Components of the Common Service Layer

5.2 Objectives and expectations

5.2.1 Objectives and expectations for implementing CSL

5.2.2 CSL functions

5.3 Functional planning

5.3.1 Automatic RECON loss notification (ARLN)

5.3.2 Coordinated global online change

5.3.3 Sysplex terminal management

5.3.4 Automated operations using OM interface

5.4 Configuration planning

5.5 Configuration, security, implementation, and operations

Chapter 6. Planning for IMSplex connectivity

6.1 Introduction to IMS network connectivity

6.2 VTAM network connectivity

6.2.1 SLUTYPE2 (3270)

6.2.2 SLUTYPE1 (printers)

6.2.3 SLUTYPEP, FINANCE, and ISC

6.2.4 Intersystem communication (ISC)

6.2.5 APPC (LU6.2)

6.2.6 Multiple systems coupling (MSC)

6.2.7 Rapid Network Reconnect (RNR)

6.2.8 VTAM Generic Resources (VGR)

6.3 TCP/IP network connectivity

6.3.1 Open transaction manager access (OTMA)

6.3.2 IMS Connect

6.3.3 WebSphere MQ

6.3.4 Virtual IP Addressing

6.3.5 Network Dispatcher: WebSphere Edge Server

6.3.6 Sysplex Distributor.

6.4 IMS database connectivity

6.4.1 BMP access to shared data

6.4.2 CICS database control connectivity

6.4.3 Database connectivity through ODBA

6.5 Summary of connectivity options

Chapter 7. Putting it all together

7.1 Configuration planning

7.1.1 Data sharing configuration

7.1.2 Shared queues configuration

7.1.3 Common Service Layer configuration

7.1.4 Getting the work to IMS

7.2 Security planning

7.2.1 Data sharing security

7.2.2 Shared queues security

7.2.3 Common Service Layer security

7.2.4 Structure security

7.2.5 User IDs for started procedures

7.3 Implementation and operational planning

7.3.1 Preparing for implementation

7.3.2 Cutover to operational status

Abbreviations and acronyms

Related publications

IBM Redbooks

Other resources

Referenced Web sites

How to get IBM Redbooks

IBM Redbooks collections

Index

Back cover.

Notes:

Bibliographic Level Mode of Issuance: Monograph

Includes bibliographical references and indexes.

OCLC:

842642853