Oracle EXADATA X6-2, Service Manual

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Troubleshoot Hardware Faults Using the Oracle ILOM Web Interface
34 Oracle Server X6-2 Service Manual • June 2016
Prevention
: Periodically check the ambient temperature of the server space to ensure that it
is within the required range, especially if you have made any changes to the server space (for
example, added additional servers). The temperature must be consistent and stable.
Airflow Blockage
The server cooling system uses fans to pull cool air in from the server front intake vents and
exhaust warm air out the server back panel vents. If the front or back vents are blocked, the
airflow through the server is disrupted and the cooling system fails to function properly causing
the server internal temperature to rise.
Action
: Inspect the server front and back panel vents for blockage from dust or debris.
Additionally, inspect the server interior for improperly installed components or cables that can
block the flow of air through the server.
Prevention : Periodically inspect and clean the server vents using an ESD certified vacuum
cleaner. Ensure that all components, such as cards, cable, fans, air baffles and dividers are
properly installed. Never operate the server without the top cover installed.
Cooling Areas Compromised
To function properly, the server has cooling areas that are maintained by an air baffle,
component filler panels, and the server top cover. These server components need to be in place
for the server to function as a sealed system. If internal cooling areas are compromised, the
server cooling system, which relies on the movement of cool air through the server, cannot
function properly, and the airflow inside the server becomes chaotic and non-directional.
Action : Inspect the server interior to ensure that the air baffle is properly installed. Ensure that
all external-facing slots (storage drive, DVD, PCIe) are occupied with either a component or a
component filler panel. Ensure that the server top cover is in place and sits flat and snug on top
of the server.
Prevention
: When servicing the server, ensure that the air baffle is installed correctly and that
the server has no unoccupied external-facing slots. Never operate the server without the top
cover installed.
Hardware Component Failure
Components, such as power supplies and fan modules, are an integral part of the server cooling
system. When one of these components fails, the server internal temperature can rise. This rise
in temperature can cause other components to enter into an over-temperature state. Additionally,
some components, such as processors, might overheat when they are failing, which can also
generate an over-temperature event.