Detecting and Managing Faults 19
The following table provides brief descriptions of the troubleshooting actions shownin the flowchart. It also provides links to topics with additional information on eachdiagnostic action.
TABLE: DiagnosticFlowchart Reference Table
DiagnosticAction PossibleOutcome AdditionalInformation
Check Power OK
and AC Present
LEDs on the server.
(Flowchart item 1)
The Power OK LED is located on the frontand rearof
the chassis.
The AC PresentLED is located on the rear of the server
on each power supply.
If these LEDs are not on, check the power sourceand
power connections to the server.
•“FrontPanel Controls and
Indicators on SPARC
Enterprise T5120 Servers”
on page 5
•“FrontPanel Controls and
Indicators on SPARC
Enterprise T5220 Servers”
on page 9
Runthe ILOM show
faulty command
to check for faults.
Flowchart item 2)
The show faulty command displays the following
kinds of faults:
• Environmental faults
• Solaris Predictive Self-Healing (PSH) detected faults
• POST detected faults
Faulty FRUs areidentified in fault messages using the
FRU name.
•TABLE:Service-Related
Commands on page 26
•“Faults Displayed by show
faulty” on page 29
Check the Solaris
log filesfor fault
information.
(Flowchart item 3)
The Solaris message bufferand log files record system
events, and provide information about faults.
• If system messages indicate a faulty device, replace
the FRU.
• For more diagnostic information, review the SunVTS
report.(Flowchart item 4)
•“ViewingSolaris OS
Messages” on page 48
Run SunVTS
software.
(Flowchart item 4)
SunVTS is an application you can run to exerciseand
diagnose FRUs. Torun SunVTS, the server must be
running the Solaris OS.
• If SunVTS reports a faulty device, replace the FRU.
• If SunVTS does not report a faulty device, run POST.
(Flowchart item 5)
•“Detecting Faults Using
SunVTS Software”on
page53
Run POST.
(Flowchart item 5)
POSTperforms basic tests of the server components and
reportsfaulty FRUs.
•“Detecting Faults With
POST” on page 34
•TABLE:ILOM Properties
Used to Manage POST
Operations on page 36