VSAM Application Performance and Tuning

    

Summary:
The primary objective of this course is to provide the student with the ability to define, understand and maintain a VSAM dataset.

Duration:
4 Days/Lecture & Lab

Audience:
This course is intended for data processing personnel involved with the development and/or maintenance of systems using the Virtual Storage Access Method (VSAM).

Topics:

• Properly defining a VSAM dataset by determining which options to select based on the projected usage and size of the dataset
• Understanding buffer allocations and considerations for faster access to VSAM datasets
• Understanding the usage, options, pros and cons of alternate indexes
• Understanding the options for data placement and index positioning
• Using the LISTCAT to monitor the performance of a VSAM dataset
• Properly maintaining a VSAM dataset based on its historical usage and performance
• Understand Control Intervals and Control Area, CIDF, RDF
• Understand the 3 types of VSAM file KSDS, RRDS, ESDS
• Understand insertions into a KSDS VSAM file, CI splits and CA splits

Prerequisites:
The student should have a basic knowledge of VSAM and some familiarity with access method services.

Last Update: February 11, 2012