Control Interval Dump and Modification Utility (PROCESS_AREA command)
This utility provides a quick, efficient means to accomplish the following tasks:
dump (snap), inspect, or modify the entire contents of a database control interval (CI)
verify and repair pointer errors and VSAM control information, even when standard VSAM utilities do not provide access to the data
print the contents of the DMAC block or DMCB block for an area
When the online or offline analysis function is executed, segment pointers, FSE chains, IMS and VSAM control fields, and space utilization are verified and discrepancies are reported. If discrepancies are found, the Control Interval Dump and Modification utility can be used to dump the CIs involved so that segments in error can be located and the proper values can be determined. When you are ready to repair the pointer values, the utility can be used to make and commit the required changes.
The Control Interval Dump and Modification Utility is executed by specifying the PROCESS_AREA command and one or more PERFORM subcommands. A script can be specified on each PERFORM subcommand to indicate the action desired. A script consists of one or more function calls, each which performs a specific desired task.
The PROCESS_AREA command can be used in either online or offline mode. When PROCESS_AREA executes in offline mode, the input to the function can be the area data set or an image copy. Specify the image copy or area data set name on the areaname DD statement. The utility determines which input is specified.
- PROCESS_AREA keywords and subcommands
- Selecting the database and areas when using the Control Interval Dump and Modification Utility
- Offline considerations
- Offline control statements
- Online control statement
- Available functions
- Syntax requirements
- Dump and print functions
- Control Interval Modification functions
- Verify and replace locking considerations
- Control Interval Dump and Modification Utility sample scenarios
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