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34 SPARC Enterprise T5440 Server Service Manual • June 2011
Detecting Faults
This section describes the different methods you can use to identify system faults in
the server.
Detecting Faults Using LEDs
The server provides the following groups of LEDs:
■ Front panel system LEDs. See “Front Panel LEDs” on page 5.
■ Rear panel system LEDs. See “Rear Panel LEDs” on page 8.
■ Hard drive LEDs. See “Hard Drive LEDs” on page 84.
■ Power supply LEDs. See “Power Supply LED” on page 95.
■ Fan tray LEDs. See “Fan Tray Fault LED” on page 89.
■ Rear panel Ethernet port LEDs. See “Ethernet Port LEDs” on page 9.
■ CMP module or memory module LEDs. See “Servicing CMP/Memory Modules”
on page 102
■ FB-DIMM Fault LEDs. See “FB-DIMM Fault Button Locations” on page 117.
These LEDs provide a quick visual check of the state of the system.
Task Topic
Use front panel and back panel LEDs to
identify system faults.
“Detecting Faults Using LEDs” on page 34
Use the ILOM show faulty command to
detect faults.
“Detecting Faults (ILOM show faulty
Command)” on page 36
Use Oracle Solaris OS files and commands
to detect faults.
“Detecting Faults (Oracle Solaris OS Files and
Commands)” on page 39
Use the ILOM event log to detect faults. “Detecting Faults (ILOM Event Log)” on
page 40
Use POST to identify faults. “Detecting Faults Using POST” on page 46
Use Predictive Self-Healing (PSH) to
identify faults.
“Identifying Faults Detected by PSH” on
page 48