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VSAM - Managing VSAM Data 2.4

Duration

3 hours

Overview

This course explains how VSAM data can be configured, allowing it to be shared by jobs, TSO users, UNIX processes and started tasks. It also addresses recovery options available when VSAM data is shared. A detailed explanation of parameters affecting VSAM performance is covered as well as the types of utilities used to capture VSAM performance statistics.

Audience

This course is oriented to Application Programmers, and Systems Programmers.

Prerequisites

Completion of the "VSAM - Introduction to VSAM 2.4" course, or experience using JCL.

Objectives

After completing this course, the student will be able to:

  • Describe how VSAM file sharing and VSAM Record Level Sharing works
  • Identify how VSAM performance can be improved

Course Content

VSAM File Sharing

Sharing a VSAM Data Set
VSAM Cluster SHAREOPTIONS Attribute
Buffers
Cross System Sharing
VSAM Record Level Sharing
Transactional VSAM Services - DFSMStvs
Configuring DFSMStvs
DFSMStvs Forward Recovery

Comparing and Listing Data Using IEBCOMPR and IEHLIST

Introduction to IEBCOMPR
Coding IEBCOMPR JCL
Interpreting IEBCOMPR Output
Using IEHLIST
IEHLIST JCL Requirements
Creating a PDS Directory Listing
Listing VTOC Entries

VSAM Performance

Control Interval Size
zHyperLink
Control Area Size
CI and CA Splits
Free Space
Speed and Recovery Attributes
Compression
Encryption
VSAM Striping
VSAM Buffer Use
Obtaining Performance Statistics Using LISTCAT and LISTSTAT
SMF Records
RMF Monitor III

VSAM - Managing VSAM Data Mastery Test


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