View online
More options
Abstract
Virtual Storage Access Method (VSAM) is one of the access methods used to process data. Many of us have used VSAM and work with VSAM data sets daily, but exactly how it works and why we use it instead of another access method is a mystery.
This book helps to demystify VSAM and gives you the information necessary to understand, evaluate, and use VSAM properly. It clarifies VSAM functions for application programmers who work with VSAM. This book also builds upon the subject of Record Level Sharing and DFSMStvs.
The practical, straightforward approach should dispel much of the complexity associated with VSAM. Wherever possible an example is used to reinforce a description of a VSAM function.
This IBM® Redbooks publication is intended as a supplement to existing product manuals. It is intended to be used as an initial point of reference for VSAM functions.
Table of contents
Chapter 1. VSAM basics
Chapter 2. VSAM performance
Chapter 3. Managing your VSAM data sets
Chapter 4. Best practices for ICF catalog and VSAM
Chapter 5. VSAM Record Level Sharing
Chapter 6. DFSMStvs
Chapter 7. VSAM problem determination and recovery
Appendix A. Sample code
Appendix B. Miscellaneous performance items
Disclaimer
These pages are Web versions of IBM Redbooks- and Redpapers-in-progress. They are published here for those who need the information now and may contain spelling, layout and grammatical errors.
This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. Your feedback is welcomed to improve the usefulness of the material to others.
IBM assumes no responsibility for its accuracy or completeness. The use of this information or the implementation of any of these techniques is a customer responsibility and depends upon the customer's ability to evaluate and integrate them into the customer's operational environment.