HP DL560 HP ProLiant DL560 Server User Guide - Page 39

Optimum Environment, Space and Airflow Requirements

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Server Setup 39 Optimum Environment When installing the server in a rack, select a location that meets the environmental standards described in this section. Space and Airflow Requirements To allow for servicing and adequate airflow, observe the following space and airflow requirements when deciding where to install a rack: • Leave a minimum clearance of 63.5 cm (25 in) in front of the rack. • Leave a minimum clearance of 76.2 cm (30 in) behind the rack. • Leave a minimum clearance of 121.9 cm (48 in) from the back of the rack to the back of another rack or row of racks. HP servers draw in cool air through the front door and expel warm air through the rear door. Therefore, the front and rear rack doors must be adequately ventilated to allow ambient room air to enter the cabinet, and the rear door must be adequately ventilated to allow the warm air to escape from the cabinet. CAUTION: To prevent improper cooling and damage to the equipment, do not block the ventilation openings. When there is vertical space in the rack not filled by a server or rack component, the gaps between the components cause changes in airflow through the rack and across the servers. Cover all gaps with blanking panels to maintain proper airflow. CAUTION: Always use blanking panels to fill empty vertical spaces in the rack. This arrangement ensures proper airflow. Using a rack without blanking panels results in improper cooling that can lead to thermal damage. The 9000 and 10000 Series racks provide proper server cooling from flowthrough perforations in the front and rear doors that provide 64 percent open area for ventilation.

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Server Setup
39
Optimum Environment
When installing the server in a rack, select a location that meets the
environmental standards described in this section.
Space and Airflow Requirements
To allow for servicing and adequate airflow, observe the following space and
airflow requirements when deciding where to install a rack:
•
•
•
Leave a minimum clearance of 63.5 cm (25 in) in front of the rack.
Leave a minimum clearance of 76.2 cm (30 in) behind the rack.
Leave a minimum clearance of 121.9 cm (48 in) from the back of the rack to
the back of another rack or row of racks.
HP servers draw in cool air through the front door and expel warm air through
the rear door. Therefore, the front and rear rack doors must be adequately
ventilated to allow ambient room air to enter the cabinet, and the rear door must
be adequately ventilated to allow the warm air to escape from the cabinet.
CAUTION:
To prevent improper cooling and damage to the
equipment, do not block the ventilation openings.
When there is vertical space in the rack not filled by a server or rack component,
the gaps between the components cause changes in airflow through the rack and
across the servers. Cover all gaps with blanking panels to maintain proper
airflow.
CAUTION:
Always use blanking panels to fill empty vertical
spaces in the rack. This arrangement ensures proper airflow. Using a
rack without blanking panels results in improper cooling that can lead to
thermal damage.
The 9000 and 10000 Series racks provide proper server cooling from flow-
through perforations in the front and rear doors that provide 64 percent open area
for ventilation.