LPAR example

You can initiate a dump to SCSI disk of a Linux instance running on an LPAR from an HMC or SE web interface.

About this task

The following description refers to an HMC, but the steps also apply to an SE.

As an alternative to the steps that follow, you can also use the HMC Web Services API to trigger the dump process. For more information and an example, see Example for triggering an LPAR dump to a SCSI dump device.

In the navigation pane of the HMC, expand Systems Management and select the hardware system you want to work with.
A table of LPARs is displayed in the content area.
Select the LPAR for which you want to initiate the dump.
In the Tasks area, click Load to display the Load panel.
Figure 1 shows an example of an HMC with a selected hardware system and LPAR. The Load task can be seen in the Tasks area.
Figure 1. HMC with the Load task
Select Load type "SCSI dump".
Type the device number of the FCP adapter for the SCSI disk into the Load address field.
Type the World Wide Port name of the SCSI disk into the World wide port name field.
Type the Logical Unit Number of the SCSI disk into the Logical unit number field.
Type 0 in the Boot program selector field.
Accept the defaults for the remaining fields.
Figure 2 shows a Load panel with all entries and selections required to start the SCSI dump process.
Figure 2. Load panel with enabled SCSI feature for dumping to SCSI disk

Optionally, you can specify dump tool parameters in the Operating system specific load parameters field. For example, for the SCSI dump tool, you can specify dump_debug=3 to set the level of debug messages.
Click OK to start the dump process.
Wait until the dump process completes. Click the Operating System Messages icon for progress and error information.

When the dump has completed successfully, you can IPL Linux® again.