IMS Version 8 implementation guide : a technical overview of the new features / [Jouko Jantti ... et al.].

Format:

Book

Contributor:

Jäntti, Jouko.

International Business Machines Corporation. International Technical Support Center.

Series:

IBM redbooks.

IBM redbooks

Language:

English

Subjects (All):

Database management.

IMS (DL/I) (Computer system).

Physical Description:

xvi, 334 p. : ill.

Edition:

1st ed.

Place of Publication:

[United States] : IBM, International Technical Support Organization, 2002.

Language Note:

English

System Details:

text file

Summary:

In this IBM Redbooks publication, we describe the new features and functions in IMS Version 8. We document the tasks necessary to exploit the features, and identify migration, coexistence, and fallback considerations. We also identify specific hardware and software requirements that are needed to exploit certain enhancements. First we provide an overview, where we have grouped the various enhancements and their discussion into the categories availability and recoverability, performance and capacity, systems management, and application enablement. Then we have more detailed chapters for describing the individual enhancements. The base enhancements part of the book describes the base product enhancements that apply to all users migrating to IMS Version 8. The Parallel Sysplex enhancements part of the book describes enhancements in IMS Version 8 that apply to both existing users of IMS Version 6 or IMS Version 7 in a Parallel Sysplex environment and users that are considering sysplex functionality. The Common Service Layer part documents the Common Service Layer (CSL), new in IMS Version 8, which is the next step in IMS Parallel Sysplex evolution. The CSL enables IMS systems to operate in unison in an OS/390 Parallel Sysplex. The CSL components provide the infrastructure for an IMSplex. Please note that the additional material referenced in the text is not available from IBM.

Contents:

Front cover

Contents

Notices

Trademarks

Preface

The team that wrote this redbook

Become a published author

Comments welcome

Part 1 Introduction

Chapter 1. Overview

1.1 Introduction to the enhancements

1.2 Availability and recoverability

1.2.1 Database Recovery Control (DBRC) enhancements

1.2.2 Database Image Copy 2 enhancements

1.2.3 HALDB enhancements

1.2.4 Batch Resource Recovery Service (RRS) support

1.2.5 Remote Site Recovery (RSR) enhancement

1.2.6 Enhanced availability by using the Resource Manager (RM)

1.2.7 Common Queue Server (CQS) enhancements

1.2.8 APPC and OTMA enhancements

1.2.9 APPC/IMS enhancements

1.2.10 IMS Online Recovery Service (ORS) support

1.2.11 System Log Data Set (SLDS) dynamic backout processing

1.3 Performance and capacity enhancements

1.3.1 Fast Path enhancements

1.3.2 Parallel database processing enhancement

1.3.3 IMS MSC FICON CTC support

1.3.4 Virtual storage constraint relief

1.4 Systems management enhancements

1.4.1 BPE enhancements

1.4.2 Common Service Layer

1.4.3 Installation and configuration enhancements

1.4.4 Syntax Checker

1.4.5 Transaction trace

1.5 Application enablement enhancements

1.5.1 Java enhancements

Part 2 IMS Version 8 base enhancements

Chapter 2. Packaging and installing

2.1 Product packaging

2.1.1 Installation changes

2.1.2 Changes in target and distribution data sets

2.1.3 SMP/E processing changes in IMS Version 8

2.1.4 User exits in IMS Version 8

2.2 IVP changes

2.2.1 Execution steps

2.2.2 IMS Java IVP

2.3 IMS system definition

2.3.1 Changed minimum and default values for RECLNG in MSGQUEUE macro

2.4 New and obsolete execution parameters

Chapter 3. Syntax Checker

3.1 Introduction

3.2 Getting started

3.3 Using the Syntax Checker.

3.3.1 Changing releases

3.3.2 Display options

3.3.3 Save options

Chapter 4. Database management enhancements

4.1 Database Image Copy 2 enhancements

4.1.1 Multiple DBDS and ADS copies

4.1.2 Group name support

4.1.3 Single output data set

4.1.4 Support for the DFSMSdss OPTIMIZE option

4.1.5 GENJCL support

4.2 Parallel database processing

4.2.1 DBRC authorization

4.2.2 Full function database allocation, open and close processing

4.2.3 Considerations

4.3 Fast Path DEDB enhancements

4.3.1 DEDB support greater than 240 areas

4.3.2 Nonrecoverable DEDBs

4.3.3 Coupling Facility support for DEDB VSO

4.3.4 Unused IOVF count

4.4 Batch RRS support

4.4.1 Supported environments

4.4.2 Activation and requirements

4.5 Coordinated IMS/DB2 disaster recovery support

4.5.1 XRC tracking

4.5.2 Log synchronization

4.5.3 Operations

4.5.4 Messages and log records changes

4.5.5 Coexistence

Chapter 5. Database Recovery Control enhancements

5.1 Support of 16 MB RECON record size

5.1.1 RECON record spanning segments

5.1.2 Usage of alerts

5.2 DBRC PRILOG compression

5.3 DBRC command authorization

5.3.1 Security support for DBRC commands and protected resources

5.3.2 The resource name table DSPRNTBL

5.3.3 How command authorization gets invoked

5.3.4 Supported environments

5.3.5 Usage of the DBRC command authorization exit (DSPDCAX0)

5.3.6 DBRC command authorization examples

5.4 Avoidance of certain DBRC abends

5.5 Automatic RECON loss notification

5.6 IMS version coexistence for DBRC

Chapter 6. Transaction trace

6.1 Transaction trace (MVS component trace)

6.1.1 How transaction trace works

6.1.2 How to use transaction trace

6.1.3 Sample transaction trace output

Chapter 7. APPC base enhancements

7.1 Dynamic LU 6.2 descriptor support.

7.1.1 Add a new LU 6.2 descriptor

7.1.2 Delete an LU 6.2 descriptor

7.2 CPU time limit for CPI-C driven transactions

7.3 Support for APPC outbound LU

Chapter 8. Application enablement

8.1 Overview

8.2 Java dependent regions

8.2.1 Persistent Reusable Java Virtual Machine

8.2.2 Benefits of a JVM environment

8.2.3 Other IMS Java considerations

8.2.4 DFSJMP and DFSJBP procedures

8.2.5 JVMOPMAS and JVMOPWKR members

8.2.6 ENVIRON= and DFSJVMAP members

8.2.7 IMS system definition considerations

8.2.8 PSBGEN considerations

8.2.9 /DISPLAY examples

8.3 Java standards enhancements

8.3.1 Java result set types

8.3.2 Java result set concurrency

8.3.3 Batch updates

8.3.4 New SQL keywords

8.4 JDBC access enhancements

8.5 Java Tooling enhancement

8.6 XML and IMS

Chapter 9. Java enhancements for IMS and WebSphere

9.1 WebSphere 4.0.1 support

9.2 J2EE architecture

9.3 DataSource

9.4 Enterprise Archive (.ear)

9.5 Deploying the ear file

9.5.1 Configure the WebSphere server region for IMS access

9.5.2 Obtain the WebSphere for z/OS System Administration tool

9.5.3 Install an IMS JDBC Resource Adapter into a WebSphere server region.

9.5.4 Configure and deploy an instance of the IMS JDBC Resource Adapter

9.6 Configure and deploy an Enterprise Archive

9.7 IVP for WebSphere for z/OS

9.7.1 Untar the IVP Enterprise Archive

9.7.2 Configure an IMS JDBC Resource Adapter instance for the IVP EJB

9.7.3 Import, deploy and export the IVP application

9.7.4 Deploy and configure the Enterprise Archive (imsjavaIVP.ear)

9.7.5 Update the HTTP Server for access to the IVP Web application

9.8 Test the IVP application

9.9 Error logging and tracing in WebSphere for z/OS

9.9.1 Sample trace outputs

Part 3 IMS Version 8 Parallel Sysplex enhancements.

Chapter 10. Coupling Facility structure management

10.1 System managed rebuild

10.2 Alter and autoalter

10.3 System managed duplexing

10.3.1 Background

10.3.2 Duplexing

10.3.3 Enabling duplexing

10.3.4 Disabling duplexing

10.4 Which structures support which features

Chapter 11. Base Primitive Environment enhancements

11.1 Base Primitive Environment (BPE) enhancements

11.2 New BPE address space initialization module

11.3 User exits and statistics for BPE

11.3.1 BPE configuration parameters member

11.3.2 BPE user exit list

11.4 Displaying the BPE and CQS versions

Chapter 12. Shared queues support for APPC and OTMA synchronous messages

12.1 Background

12.2 Implementation

12.3 Migration considerations

12.3.1 Synchronous messages and program-to-program switches

12.3.2 Error conditions

12.3.3 Other miscellaneous migration considerations

12.3.4 Support considerations

Part 4 Common Service Layer

Chapter 13. Common Service Layer (CSL) architecture

13.1 Background

13.1.1 The IMSplex

13.1.2 Systems management

13.1.3 Operations management

13.1.4 Resource Management

13.2 Common Service Layer (CSL) architecture

13.3 Structured Call Interface (SCI)

13.4 Operations Manager (OM)

13.4.1 Today

13.4.2 OM infrastructure

13.4.3 OM clients and their roles

13.4.4 Commands

13.4.5 User exits

13.5 Resource Manager

13.5.1 Resource management functions

13.5.2 Resource management infrastructure

13.5.3 RM clients and their roles

13.5.4 Resource structure

13.5.5 Common Queue Server (CQS)

13.5.6 Resource Manager (RM) address space

13.5.7 RM characteristics

Chapter 14. Sysplex terminal management

14.1 Sysplex terminal management objectives

14.2 Sysplex terminal management environment

14.3 IMSplex resources

14.4 STM terms and concepts.

14.4.1 Resource type consistency

14.4.2 Resource name uniqueness

14.4.3 Resource status

14.4.4 Significant status

14.4.5 Status recovery mode (SRM)

14.4.6 Status recoverability (RCVYxxxx)

14.5 Enabling sysplex terminal management

14.5.1 Setting SRM and RCVYxxxx

14.5.2 Overriding SRM and RCVYxxxx defaults

14.6 Ownership and affinities

14.6.1 Resource ownership and RM affinity

14.6.2 VTAM generic resources affinity

14.6.3 Setting VGR affinity management responsibility

14.6.4 VGR affinities and IMS Version 8

14.7 Resources and the resource structure

14.7.1 Resource structure components and characteristics

14.7.2 Resource entries in the resource structure

14.8 STM in action

14.8.1 Before the first IMS joins the IMSplex

14.8.2 Start IMSplex address spaces

14.8.3 Log on from a static NODE

14.8.4 Logon from an ETO NODE

14.8.5 Signon from an ETO NODE

14.8.6 Commands that change significant status

14.8.7 Work which changes end-user significant status

14.8.8 Commands which change end-user status

14.8.9 Session termination with significant status (not IMS failure)

14.8.10 Logon from NODE which already exists in resource structure

14.8.11 IMS failure

14.8.12 IMS emergency restart

14.8.13 Recovering significant status

14.8.14 Recovering conversations

14.8.15 Recovering Fast Path

14.8.16 Recovering STSN sequence numbers

14.8.17 Summary of STM in action

14.9 Resource structure

14.9.1 Defining the resource structure

14.9.2 Managing the resource structure

14.9.3 Structure failure

14.9.4 Loss of connectivity to a structure

14.9.5 SCI, RM, CQS, or structure failure

14.10 Miscellaneous other considerations

14.10.1 IMS exits

14.10.2 Global callable services

14.10.3 Extended Recovery Facility (XRF) considerations.

14.10.4 Rapid Network Reconnect (RNR) considerations.

Notes:

"October 2002."

"SG24-6594-00."

Includes bibliographical references and index.

OCLC:

560313391