Oracle X7-2L, Service Manual

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Troubleshoot Hardware Faults Using the Oracle ILOM Web Interface
Cooling Issue Description Action Prevention
■ To reduce the risk
related to component
failure, power supplies
and fan modules are
installed in pairs to
provide redundancy.
Redundancy ensures
that if one component in
the pair fails, the other
functioning component can
continue to maintain the
subsystem. For example,
power supplies serve a dual
function; they provide both
power and airflow. If one
power supply fails, the
other functioning power
supply can maintain both
the power and the cooling
subsystems.
Troubleshooting Power Issues
If your server does not power on, use the information in the following table to troubleshoot the
issue.
Power Issue Description Action Prevention
AC Power
Connection
The AC power cords are the
direct connection between the
server power supplies and the
power sources. The server
power supplies need separate
stable AC circuits. Insufficient
voltage levels or fluctuations
in power can cause server
power problems. The power
supplies are designed to
operate at a particular voltage
and within an acceptable range
of voltage fluctuations (refer to
“Electrical Requirements” in
Oracle Servers X7-2 and X7-
2L Installation Guide ).
Verify that both AC power
cords are connected to the
server. Verify that the correct
power is present at the outlets
and monitor the power to
verify that it is within the
acceptable range. You can
verify proper connection and
operation by verifying the
power supply (PS) indicator
panels, which are located at
the back of the server on the
power supplies. Lit green
AC OK indicators show a
properly functioning power
supply. An amber AC OK
indicator indicates that the AC
power to the power supply is
insufficient.
Use the AC power cord Velcro
retaining clips and position
the cords to minimize the risk
of accidental disconnection.
Ensure that the AC circuits that
supply power to the server are
stable and not overburdened.
Troubleshooting and Diagnostics 35