An Introduction to IMS: Your Complete Guide to IBM by Barbara Klein, Richard Alan Long, Kenneth Ray Blackman,

An Introduction to IMS: Your Complete Guide to IBM by Barbara Klein, Richard Alan Long, Kenneth Ray Blackman,

By Barbara Klein, Richard Alan Long, Kenneth Ray Blackman, Diane Lynne Goff, Stephen Paul Nathan, Moira McFadden Lanyi, Margaret M. Wilson, John Butterweck, Sandra L. Sherrill

IBM’s Definitive One-Stop consultant to IMS models 12, eleven, and 10: for each IMS DBA, Developer, and process Programmer


Over ninety% of the head Fortune® one thousand businesses depend upon IBM’s details administration process (IMS) for his or her most crucial IBM process z® info administration wishes: 50,000,000,000+ transactions run via IMS databases each day. What’s extra, IBM keeps to improve IMS: models 12, eleven, and 10 meet today’s company demanding situations extra flexibly and at a lower price than ever earlier than. In An creation to IMS, moment Edition, major IBM specialists current the definitive technical advent to those types of IMS.

More than an entire instructional, this e-book presents up to date examples, situations, difficulties, suggestions, and a whole thesaurus of IMS terminology. Prerequisite studying for the present IBM IMS Mastery Certification application, it displays significant fresh improvements akin to dynamic details iteration; new entry, interoperability and improvement instruments; more advantageous SOA aid; and lots more and plenty extra. even if you’re a DBA, database developer, or approach programmer, it brings jointly all of the wisdom you’ll have to be successful with IMS in today’s venture severe environments.


Coverage includes


  • What IMS is, the way it works, the way it has developed, and the way it matches into smooth company IT architectures
  • Providing safe entry to IMS through IMS-managed software programs
  • Understanding how IMS and z/OS® interact to take advantage of and software program extra efficiently
  • Setting up, working, and retaining IMS
  • Running IMS Database supervisor: utilizing the IMS Hierarchical Database version, sharing facts, and reorganizing databases
  • Understanding, using, and optimizing IMS Transaction Manager
  • IMS software improvement: program programming for the IMS Database and IMS Transaction Managers, enhancing and formatting messages, and programming functions in Java™
  • IMS process management: the IMS procedure definition technique, customizing IMS, protection, logging, IMS operations, database and approach restoration, and more
  • IMS in Parallel Sysplex® environments: making sure excessive availability, supplying enough capability, and balancing workloads

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Additional resources for An Introduction to IMS: Your Complete Guide to IBM Information Management System

Example text

Definitions 舦 A transaction is a specific set of input data that triggers the execution of a specific business application program (a process or job). The message that triggers the application program, and the return of any results, is considered one transaction. 舦 The word terminal is used throughout this book to describe devices and controllers. The operator terminals can be keyboard printers, display stations with keyboards, communication terminals, or a combination of these devices. IMS TM provides services to do the following: 舦 Process input messages received from a variety of sources, such as the terminal network, other IMS systems, WebSphere MQ, and the web 舦 Process output messages that are created by application programs 舦 Provide an underlying queueing mechanism for handling these messages 舦 Provide interfaces to the TCP/IP network (IMS Connect) 舦 Provide high-volume, high-performance, high-capacity, low-cost transaction processing for both IMS DB hierarchical databases and DB2 relational databases IMS TM supports many terminal sessions, on a wide variety of terminals and devices, at extremely high transaction volumes.

A Java EE Connector Architecture (JCA)-compliant service that Java EE applications programs use to leverage IMS databases using SQL calls 舦 IMS Universal JDBC driver. Supports access to IMS databases using SQL calls 舦 IMS Universal DL/I driver. An IMS-specific Java API for DL/I access to IMS databases using Java methods that are based on IMS DL/I semantics Two types of connectivity are supported by the IMS Universal drivers: Type 2. For local connectivity to IMS databases in the same logical partition Type 4.

John Butterweck, IBM Worldwide IMS Technical Support Team member, specializes in assisting customers with IMS installation and maintenance. 舦 Kenny Blackman, IBM Certified IT Specialist - IMS Advanced Technical Skills, consults on IMS connectivity, IMS application modernization and System z integration architectures, and presents IMS topics at technical conferences and seminars. 舦 Margaret Wilson, now retired from IBM, spent more than 20 years of her IBM career working with IMS and IMS Tools, testing IMS software, teaching IMS basics, and marketing IMS Tools.

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