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Using DFSMS to Manage the z/OS Storage Environment


6 hours


This course describes today's data storage needs and the role of various DFSMS components in managing that data. It looks at data management rule creation and the role that DFSMShsm plays in ensuring sufficient space is made available.


This course is suitable for Operators, System Programmers, Storage Administrators and other staff who are responsible for monitoring and managing data storage in a z/OS environment.


General knowledge of ISPF and z/OS data processing concepts.


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

  • Describe how DFSMS is Used to Manage the Storage Environment
  • Identify the purpose of DFSMS components
  • Display SMS Storage Information using ISMF
  • Describe how ACS Routines are Created and Activated
  • Explain how DFSMShsm is used for Data Set Migration and Backup/Recovery

Course Content

Introduction to DFSMS

Storage Requirements in Today’s Data Center
Data Availability
Backup and Recovery
The Role of DFSMS in Managing Storage
DFSMS Components

Using SMS Constructs

How Constructs are Used
Data Class
Management Class
Storage Class
Storage Groups

Automatic Class Selection Routines

What is an Automatic Class Selection (ACS) Routine?
The ACS Programming Language
Creating and Testing an ACS Routine
Activating ACS Routines
ACS Routine Execution

ISMF Fundamentals

Who Uses ISMF?
Accessing ISMF
Generating Data, Class and Storage Lists
ISMF Tasks for Storage Administrators

Space and Availability Management using DFSMShsm

Space and Availability Storage Requirements
The Role of DFSMShsm
End-User and Storage Administrator Tasks
Deleting Expired Data Sets
Understanding Migration
Volume Dumps
Incremental Backups
Data Recovery using DFSMShsm

DFSMSrmm Operations

The Role of DFSMSrmm in Managing Tape
Major DFSMSrmm Components
Accessing DFSMSrmm
Starting, Stopping and Modifying DFSMSrmm
Responding to Initialization, Tape Processing and DFSMSrmm System Messages
Initializing, Erasing and Scanning Tape Volumes

Using DFSMS to Manage the z/OS Storage Environment Mastery Test

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