Sun Microsystems Sun Fire V100 - Manual (Page 118)

100 Sun Fire V100 Server User’s Guide • December 2001
Diagnostic Tools
The following troubleshooting tools are available for the servers:
■ Power On Self Test (POST) Diagnostics
■ OpenBoot Diagnostics (OBDiag)
■ SunVTS
POST Diagnostics
To view Power On Self Test (POST) diagnostic and error messages you need to have
a serial connection set up to the server. For more information, see “Setting Up a
Console Connection to the Server” on page 20.
If the OpenBoot PROM (OBP) variable diag-switch? is set to true , then POST
diagnostics will run automatically when you power on the server. However, the
default setting for
diag-switch? is false .
To initialize POST diagnostics, you need to set the diag-switch? variable to true
and diag-level to max or min , and then power cycle the server. From the ok
prompt:
1. Type:
2. Type:
The system will now run POST diagnostics and display status and error messages in
your console window. If POST detects an error, it displays an error message
describing the failure. A sample error message is shown below:
ok setenv diag-switch? true
ok reset-all
Power On Self Test Failed. Cause: DIMM U0702 or System Board