Diagnostic tools, Post diagnostics – Sun Microsystems Sun Fire V100 User Manual
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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