Introduction IMS (1IMS )

Module

1IMS

Description

This introduction covers the DB and the DC part of IMS. The hierarchical database model is explained. Furthermore, a transaction in an IMS system followed. Attention is also paid to an IMS configuration with the associated address spaces.

Topics

*Introduction

History of IMS

*IMS DC

Functions IMS DC Control region

Function DLISAS address space

Message processing regions

Batch message processing regions

IMS batch address apces

*Proceedings of a transaction

Terminal message in the

Message formatting services

Message Queue

Logging

Activating transaction

*Transaction scheduling

Transaction class

Transaction priority

Limit priority and limit count

Processing limit count

Wait for Input and IMS fast path transactions

Work load balancing

*IMS DB

Functions a DBMS

Data redundancy

Data independency

Data Base Descriptor (DBD)

Program Specification Block (PSB)

Program Communication Block (PCB)

Access Control Block (ACB)

Approach data base

Prerequisites

Course 1RKC, 1DATAM, 1ZOS, 1DATACOM, 1VTAM

Coursedays

1 day

Class

Classroom with syllabus

Special

A written test is possible.