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IMS Essentials

July 22, 2019 - July 25, 2019

This course offers a comprehensive introduction to IMS for all those new to the IMS environment. It provides ideal cross-training for application support specialists from disciplines such as CICS, COBOL, JAVA, or DB2.
The course introduces and explains all areas of IMS databases in both the Batch and Online environments, including data access using the DL/I Language Interface and the maintenance of data integrity using the DBRC feature. Written exercises reinforce the formal tuition sessions. These include the analysis of sample applications and use of the procedures and utilities required to recover from various application and system failures.

The next step

For all DBAs, systems programmers and technical support personnel the logical follow-on to this is the five-day IMS/DB & IMS/TM for Technical Support course.

What do I need for “Virtual Classroom Environment”?
  • Webcam.
  • Headphones with a microphone.
  • Sufficient bandwidth, at least 1.5 Mb/s in each direction.


On successful completion of this course you will be able to:

  • Describe the architecture of IMS batch and online systems
  • Analyze database and communication calls
  • Identify appropriate logical and physical database design features
  • Describe the structure of secondary indexes and logical relationships
  • Use IMS utilities to backup, restore, and reorganize the database
  • Discuss the facilities available in IMS to provide data integrity and system availability.
  • Trace the flow of a transaction through an IMS system

Who Should Attend?

All those working in IMS Applications and Database Development, or any systems and operations personnel who require an understanding of the IMS environment.


A general understanding of the IBM enterprise server (mainframe) computing environment and an appreciation of application development concepts is assumed.


4 days

Fee (per attendee)

$3,600 CAN

Course Code



Introduction to IMS

Why Use a Database?; Database types; Hierarchical terminology; Processing path; Accessing data; Database implementation; IMS online environment; Message Format Services (MFS); Utilities; Logging; Operational responsibilities.

Introduction to Batch Programming

DL/I Language Interface; Program Specification Block (PSB); IMS Call Format; Function code; Record retrieval Workshop.

Advanced Database Programming

Update processing; Command codes; PCB Addressing; Boolean SSAs; Workshop.

Database Environment

Program Specification Block (PSB); PSB statements; PCB; PROCOPTs; PSB generation; ACB generation; PSB/program relationships; Batch JCL; Workshop.

Database Implementation – 1

DBD; Database Organisation and Access Methods.

Database Implementation – 2

Secondary indexing; Secondary data structure; Stand-Alone processing; Things to consider; Logical relationships.

Database Implementation – 3

An introduction to HALDB features and processing options.

Database Backup and Recovery

Logging; Image Copy; Reorganisation; Database Recovery Control (DBRC); associated tools and utilities.

IMS/TM Concepts & Facilities

IMS/DC configuration; Control (CTL) region; DL/I Separate Address Space (DLISAS); Database Recovery Control (DBRC); Message Processing Region (MPR); Batch Message Processing (BMP) region; Message scheduling; Logging.

IMS Online Programming – 1

Message Processing Program (MPP); Transaction codes & flow; Input message segment; Output message segment; IMS message calls; IO PCB mask; Common status codes; Workshop.

Message Format Services

MFS control blocks; DIF/DOF coding; MID/MOD coding; Attributes; Message management.

IMS Online Programming – 2

Alternate PCB; Using Alternate PCB; Transaction switching; Conversational programming; Using Checkpoint/Restart; Workshop.

Fast Path

General characteristics; Fast Path EMH; Data Entry Database (DEDB); Main Storage Database.

Online IMS System Recovery and Restart

Logging; Restart Data Set (RDS); Archiving; Contents of the Log; Normal restart; Emergency restart.

Sharing Data and Data Sharing

Sharing access – the problem; Sharing access – solutions; Control region / DLISAS; Program isolation; Locking; Deadlock resolution; Data sharing; Database-Level Sharing; Block-level sharing; DBCTL.

IMS Operations

Operational considerations; Operations planning; Starting IMS; Stopping IMS; Online change facility; Controlling IMS.

IMS Performance Management

DB performance; DB monitor; Database buffer pools; DC performance.


July 22, 2019
July 25, 2019
Event Category:
Event Tags:


Toronto, Canada
Toronto, Ontario Canada + Google Map


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Disclaimer notice: 

The above are samples for course descriptions, objectives, content, and pre-requisites. Each virtual classroom course is a minimum of 3 participants and a maximum of 6 participants. Fifteen (15) day confirmation notice is required for public courses or thirty (30) day confirmation notice for private courses before the start of the course.  The schedule and cost are tentative and subject to confirmation based on your actual requirements. For price, availability, and confirmation, please contact us.

Online orders are not refunded within fifteen (15) day for public courses or thirty (30) day for private courses prior to the starting date. A 5% administration fee will be charged for course cancelation or change.