How To Maximize Diagnostic Testing - Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual

How to Maximize Diagnostic Testing

To maximize system reliability, it is useful to have POST and OpenBoot Diagnostics
tests trigger in the event of an operating system panic or any reset, and to run
automatically the most comprehensive tests possible. 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 server's front panel or, if you are running your test session
remotely from console display, via the ALOM interface.
Set the diag-switch? variable to true. Type:
ok setenv diag-switch? true
2. Set the OpenBoot configuration diag-script variable to all. Type:
ok setenv diag-script all
This allows OpenBoot Diagnostics tests to run automatically on all motherboard
components and IEEE 1275-compatible devices.
Note – If you prefer that OpenBoot Diagnostics examine only motherboard-based
devices, set the diag-script variable to normal.
Chapter 3 Isolating Failed Parts 61