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English
  • PowerExchange for CDC and Mainframe 10.5.4
  • All Products

Table of Contents

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  1. Preface
  2. Part 1: PowerExchange Change Data Capture Introduction
  3. Part 2: CDC Components Configuration and Management
  4. Part 3: CDC Sources Configuration and Management
  5. Part 4: Change Data Extraction
  6. Part 5: Monitoring and Tuning
  7. Appendix A: CDC for z/OS Troubleshooting
  8. Appendix B: DTL__CAPXTIMESTAMP Time Stamps

CDC Guide for z/OS

CDC Guide for z/OS

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IMS External Subsystem Commands

IMS External Subsystem Commands

You can issue commands to the IMS external subsystem of the IMS synchronous ECCR through the subsystem routing command, /SSR. Use these commands to dynamically change how the IMS control region reacts when the ECCR cannot capture changes for an IMS database or to produce snapshot reports of IMS synchronous ECCR activity.
The following table describes the external subsystem commands:
Command
Description
/SSR
x
EDP-ABORT
Overrides the CCERR parameter option of the EDMSDIR module to ABEND.
The ABEND action:
  • Causes transactions to pseudo-abend with a U4094 abend message if the PowerExchange Logger terminates.
  • Remains in effect until a process or command terminates the IMS control region or until another SSR command supersedes the
    x
    EDP-ABORT command.
/SSR
x
EDP-CONTINUE
Overrides the CCERR parameter option of the EDMSDIR module to CONT.
The CONT action:
  • Instructs the IMS ECCR to not capture change data if the PowerExchange Logger or external subsystem is terminated but allows transactions to continue. In this situation, change data might be lost.
  • Remains in effect until a process or command terminates the IMS control region or until another SSR command supersedes the
    x
    EDP-CONTINUE command.
/SSR
x
EDP-STAT
Produces a report of IMS synchronous ECCR change capture activity in the EDMMSG SYSOUT data set.
The report shows the number of record inserts, replacements, and deletes that the IMS ECCR has captured, by database area and segment.
/SSR
x
EDP-STATWTO
Produces a report of IMS synchronous ECCR change capture activity in the job log of the IMS region.
The report shows the number of record inserts, replacements, and deletes that the IMS ECCR has captured, by database area and segment.
In these commands, substitute the
x
 variable with the command recognition character (CRC) that you specified when configuring the external subsystem of the ECCR in the IMS PROCLIB. For more information, see Configuring the IMS External Subsystem.
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