IBM SY44-5902-05 manual Start a service tool, Options on the Start a Service Tool display

Service functions will not interrupt the console display unless you have already set debug mode. Sign-on is necessary to access DST. All active service functions end.

vStart DST in debug mode on IPL

Service functions can interrupt the normal operating system process to display debug information. When an operating display appears, you can enter DST by performing the System Request Key procedure. This displays the Use Dedicated Service Tools (DST) display without requiring you to log on to DST. For more information on the System Request Key procedure, see “Pressing the System Request Key while the system is operational” on page 7.

Start a service tool

Select this option from the Use Dedicated Service (DST) Tools display.

Note: The Start a service tool option is also available from the System Service Tools (SST) display.

It displays the available service functions.

Options on the Start a Service Tool display

The following options are available from the Start a Service Tool display:

vDisplay/Alter/Dump

vLicensed Internal Code log

vLicensed Internal Code trace

vHardware service manager

vMain storage dump manager

vProduct activity log

vOperator panel functions

vPerformance data collector

vWork with communications trace (available only on systems with SST)

Display/Alter/Dump: Select this option from the Start a Service Tool display.

Note: The Display/Alter/Dump option is also available under System Service Tools (SST).

This option allows you to display or change virtual storage data. It also allows you 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:

vTo view the data from storage on the display

–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 display 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.

vTo generate a formatted dump of the data in storage to an output device.

–Select one of the following: - Dump to printer

28Service Functions V5R2