This unit looks at the IMS reorganization utilities. During the exercises,
the HD Unload/Reload utilities will be used to change from one IMS
access method to another.
Topics include:
• HD Unload/Reload Utilities and their different purposes
• JCL and Control statements for both HD utilities
• HD Unload Checkpoint Facility
• HISAM Unload/Reload utilities with JCL and Control statements
• HISAM Unload output for Recovery purposes
After completing this unit, you should be able to
•Code the JCL and utility control statements to unload and reload a database
•Describe each situation or task that would require the use of the HD Reorganization utilities
•List the most important tasks where the HISAM Reorganization utilities might be used
•Identify the purpose and usage characteristics of each of the specific Reorganization utilities
0:00:26 Database reorganization
0:10:00 HD Unload/Reload utility
0:14:55 Reorganization after ISRT/DLET activity
0:19:59 Change data set parameters
0:20:20 Change DBD
0:21:59 DBD changes possible with reorganization
0:23:26 HD Unload utility
0:28:26 HD Reload utility
0:31:46 HD Unload Checkpoint Facility
0:36:34 HISAM Unload/Reload utilities
0:38:24 HISAM Unload utility
0:41:00 HISAM Reload utility
0:42:33 HISAM Unload output for recovery
0:44:14 Physical Organization utilities