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Optimum environment, Space and airflow requirements, Temperature requirements – HP ProLiant DL785 G6 Server User Manual

Page 24

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If you intend to deploy and configure multiple servers in a single rack, refer to the white paper
on highdensity deployment at the HP website
(

http://www.hp.com/products/servers/platforms

).

Optimum environment

When installing the server, 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:

Cover all gaps with blanking panels to maintain proper airflow.

CAUTION:

To prevent improper cooling and damage to the equipment, do not block the

ventilation openings.

When vertical space in the rack is not filled by a server or rack component, the gaps between the
components cause changes in airflow through the rack and across the servers. Always cover all
gaps with blanking panels to maintain proper airflow in the rack. 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 % open area for ventilation.

CAUTION:

When using a Compaq branded 7000 Series rack, you must install the high airflow

rack door insert [P/N 327281-B21 (42U) or P/N 157847-B21 (22U)] to provide proper front-to-back
airflow and cooling.

CAUTION:

If you use a third-party rack, observe the following additional requirements to

ensure adequate airflow and to prevent damage to the equipment:
Front and rear doors

If the 42U rack includes closing front and rear doors, you must
allow 5,350 sq cm (830 sq in) of holes evenly distributed from
top to bottom to permit adequate airflow (equivalent to the
required 64 % open area for ventilation).

Side

The clearance between the installed rack component and the side
panels of the rack must be a minimum of 7 cm (2.75 in).

Temperature requirements

To ensure continued safe and reliable equipment operation, install or position the system in a
well ventilated, climate-controlled environment.

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Setup

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