POWER7 information

Display/Alter/Dump

This topic provides information about displaying or changing virtual storage data.

Select this option from the Start a Service Tool display.

Note: The Display/Alter/Dump option is also available under system service tools (SST).

Use this option to display or change virtual storage data, as well as to dump the data to removable media (tape or optical) or a printer.

You can then use an output device to perform the following tasks:
  • To view the data from storage on the screen:
    • Select the Display/alter storage option to display unformatted data and to change the contents of storage. Use the keyboard to scroll forward or backward to view the storage information.
    • Select the Display/alter storage option to generate a formatted dump of the contents in storage. The screen is inhibited while the format function is running. When the formatting process is complete, use the keyboard to search, scroll (forward or backward), or shift (left or right) the output.
  • To generate a formatted dump of the data in storage to an output device.
    • Select one of the following:
      • Dump to printer
      • Dump to media

    When the output device is a printer or media, the actual dump task runs independently of the Display/Alter/Dump control functions. That is, while a dump is completing on a printer or media, you can operate the display/alter function (output device is the display), or you can make other dump requests for a printer or media. The system saves dump requests in a first-in-first-out queue and processes them one at a time. To display the status of the Display/Alter/Dump dump task, select the Display dump status option on the Display/Alter/Dump Output Device display.

  • To generate a printout from media that contains data from the Display/Alter/Dump function or from other Licensed Internal Code service functions, select the Print media dump file option on the Display/Alter/Dump Output Device display.

The Display/Alter/Dump function is controlled by selecting display options and by responding to prompts. Use each Display/Alter/Dump function option to request specific data. The following are examples of data types:

  • Machine Interface (MI) object
  • Licensed Internal Code data
  • Licensed Internal Code module
  • Tasks and processes
  • Starting address
Note: When you exit the Display/Alter/Dump function, the dump request that is running is ended (even if it has not completed). Unprocessed dump requests are lost.
Parent topic: Start a service tool

Send feedback Rate this page

Last updated: Wed, September 28, 2016