Ventilation Guidelines - Oracle Server X6-2 Installation Manual

Ventilation and Cooling
that might prevent air from flowing through the rack. Rackmountable servers and equipment,
including the Oracle Server X6-2, typically draw cool air in through the front of the rack and let
warm air out the rear of the rack. There is no airflow requirement for the left and right sides due
to front-to-back cooling.
If the rack is not completely filled with components, then cover the empty sections will filler
panels. Gaps between components can adversely affect airflow and cooling within the rack. See
also:
"Ventilation Guidelines" on page 22
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Ventilation Guidelines

The Oracle Server X6-2 has been designed to function while installed in a natural convection
airflow. The following requirements must be followed to meet the environmental specification:
Ensure that air intake is at the front of the system, and the air outlet is at the rear of the
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system. Take care to prevent recirculation of exhaust air within a rack or cabinet.
Allow a minimum clearance of 123.2 cm (48.5 inches) at the front of the system, and 91.4
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cm (36 inches) at the rear of the system for ventilation.
Ensure unobstructed airflow through the chassis. The server uses internal fans that can
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achieve a total airflow of 100 CFM over the specified range of operating conditions.
Ensure that ventilation openings such as cabinet doors, for both the inlet and exhaust of
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the server are not obstructed. For example, Oracle's Sun Rack II has been optimized for
cooling. Both the front and rear doors have 80 percent perforations that provide a high level
of airflow through the rack.
Ensure that front and rear clearance of the server with respect to cabinet doors is at
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minimum of 1 inch (2.5 mm) at the front of the server and 3.15 inches (80 mm) at the rear
of the server when mounted. These clearance values are based on the inlet and exhaust
impedance (available open area) stated above and assume a uniform distribution of the open
area across the inlet and exhaust areas. These values also improve cooling performance.
Note -
spacing of the server from the doors can affect the cooling performance of the server.
You must evaluate these restrictions. Server placement is particularly important for high-
temperature environments.
Manage cables to minimize interference with the server exhaust vent.
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22 Oracle Server X6-2 Installation Guide • July 2020
The combination of inlet and exhaust restrictions such as cabinet doors and the