IBM SY44-5902-05 manual Accessing Dedicated Service Tools, Performing an IPL to DST

The following options are available in the full paging environment for all operating systems:

vPerform an IPL

vInstall the operating system

vWork with Licensed Internal Code

vWork with disk units

vWork with DST environment

vStart a service tool

vWork with remote service support

vWork with system partitions

vWork with system capacity

vWork with system security

Note: The following options are operating system-dependent. For a list of the options available for your operating system, see “DST in OS/400 full paging environment” on page 281.

vSelect DST console mode

vResume operating system display

vPerform automatic installation of the operating system

vSave Licensed Internal Code

For a description of each option, see “DST options” on page 10.

Attention: For systems with logical partitions, performing an IPL on the primary partition causes the secondary partitions to be powered down. Failing to power down these secondary partitions will cause an abnormal power-down on the secondary partitions and possible loss of data.

Accessing Dedicated Service Tools

You can start dedicated service tools (DST) in several ways:

vPerforming an IPL to DST (see “Performing an IPL to DST”).

vPressing the System Request key while the system is operational (see “Pressing the System Request Key while the system is operational” on page 7).

vSelecting function 21 while the system is operational (see “Selecting Function 21 while the system Is operational” on page 7).

This is available from the primary partition only.

vPerforming an alternate IPL to DST (type D IPL) (see “Performing an alternate IPL to DST (type D IPL)” on page 8).

After performing a type D IPL on a primary partition, the first step in DST must be configuration recovery.

vUsing the function key F16 (which is not displayed) while in DST debug mode during a step-mode IPL.

Performing an IPL to DST

This procedure is for the entire system, or if logical partitions are installed, for the primary partition. For secondary partitions, see “Performing an IPL to DST for secondary partitions” on page 6.

Perform the following steps:

4Service Functions V5R2