Displaying your disk configuration

This topic describes how to display or print your current disk configuration. It also explains some of the fields that appear on the display or listing.

For some purposes, such as planning a mirrored configuration, you need to view your disk configuration both from a hardware perspective and from a software perspective. The hardware perspective shows how the disk units are attached by bus, input/output adapter (IOA), and controller. The software perspective shows how disk units are assigned to auxiliary storage pools (ASPs) and how they are protected.

You can use dedicated service tools (DST), system service tools (SST), or commands to display your disk configuration. When you are planning changes to your disk configuration, use SST and commands to print your current configuration before you begin to make changes. After you have made changes, you can use DST to verify the new configuration before you end DST.