Compaq AlphaServer GS60 Operation Manual page 165

At the console prompt, the operator enters a test xmi0 command to test all
adapters and I/O devices on the XMI I/O bus.
The status message indicates that the DWLMA adapter passes all tests. Next,
the adapters in the XMI card cage are initialized.
All XMI adapters pass self-test.
The status messages report that all exercisers started.
The console prompt returns.
System Troubleshooting 6-43