How To Put The System In Diagnostics Mode - Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual

How to Put the System in Diagnostics
Mode
Firmware-based diagnostic tests can be bypassed to expedite the server's startup
process. The following procedure ensures that POST and OpenBoot Diagnostics tests
do run during startup. For background information, see:
"Diagnostics: Reliability versus Availability" on page 14
Before You Begin
Log in to the system console and access the ok prompt. For instructions, see:
"How to Get to the ok Prompt" on page 176
What to Do
1. Do one of the following, whichever is more convenient:
Set the server's system control keyswitch to the Diagnostics position.
You can do this at the machine's front panel or, if you are running your test
session remotely from console display, via the ALOM interface.
Set the diag-switch? variable. Type:
ok setenv diag-switch? true
2. Set the OpenBoot configuration diag-script variable to normal. Type:
ok setenv diag-script normal
This allows OpenBoot Diagnostics tests to run automatically on all motherboard
components.
Note – If you prefer that OpenBoot Diagnostics examine all IEEE 1275-compatible
devices (not just those on the motherboard), set the diag-script variable to all.
Chapter 3 Isolating Failed Parts 57