IMS Fundamental - Web - ILO  (CMW01)

Compétences acquises

• Identify the elements and organization of an IMS database system
• Describe how a database record is processed in hierarchic sequence
• Understand the differences between Database Description (DBD) and Program Specification Block (PSB) control blocks.
• Compare the requirements and effects of sequential versus direct access of database segments
• Explain the rationale for using secondary indexes and logical relationships
• Contrast full-function and Fast Path database organizations
• Describe the basic IMS Data Communications functions of the IMS/TM environment
• Identify the roles of messages, queues, and logical terminal names
• Explain the different scheduling characteristics of the IMS/TM region types: Message Processing, Batch Message Processing, and Interactive Fast Path
• Describe the role of commit points in recovery and restart
• Identify the functions of dynamic and batch backout, the system log and the benefits of periodically backing up a database
• Explain how a conversational program impacts processing and performance
• Describe the function of Database Recovery Control (DBRC), Integrated Resource Lock Manager (IRLM) for data sharing, distributed processing, and DBCTL for CICS

Qui peut en profiter

This is a basic course for users, who want a basic understanding of the IMS database and IMS/TM products, and Information Technology professionals, who work with or manage IMS system Database (DB), Database/Data Communications (DB/DC), or Database Control Subsystem (DBCTL).

Préalables

You should have basic understanding of database management or TM along with working knowledge of z/OS tools and Job Control Language (JCL).

Abstract