Modifying storage through the DTST storage window

After you start the DTST transaction, the storage window is displayed. You can modify the contents of storage being displayed in the storage window.

Before you begin, verify with your system programmer that you have the authority to modify CICS® key storage, USER key storage, or both. "Authorizing DTST transaction to modify storage" in IBM® z/OS® Debugger Customization Guide describes the steps the system programmer must do to authorize you to modify CICS key storage, USER key storage, or both.

After you verify that the previous DTST command ran successfully, you can do the following steps to modify storage.

  1. Press PF9 to enter modify mode. The command line becomes protected, and columns four through seven become unprotected.
  2. Move your cursor to data you want to modify and type in the new data. You can modify several different locations at the same time.
  3. Press Enter. DTST verifies that the data you entered is valid. DTST makes all modifications that contain valid data. If any word contains invalid data, the line contains that word is highlighted. You can correct the invalid data, then press Enter to verify the change.
  4. Press any function key to end modify mode. However, you can not press any of the following keys:
    • PF10
    • PF11
    • the CLEAR key
    • the Enter key when you have typed in any modifications