Optimum Environment; Space And Airflow Requirements - HP ProLiant ML100 Series User Manual

Optimum environment

When installing the server, select a location that meets the environmental standards described in this
section.

Space and airflow requirements

Tower server
In a tower configuration, leave at least a 7.6-cm (3-in) clearance space at
for proper ventilation.
Rack server
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 mini
ra ck or row of racks.
HP servers draw in cool air throu
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:
ventilation openings.
When ver tical space in the rack is not filled by a serv
components cause changes in airflow through the rack and across the servers. Cover all gaps with
blanking panels to maintain proper airflow.
CAUTION:
arrangement ensures proper airflow. Using a rack without blanking panels results in impro
cooling that can lead to thermal damage.
The 90 00 an d 10000 Series Racks provide proper server cooling from flow-through perforations in the
fro nt an d rear doors that provide 64 percent open area for ventilation.
CAUTION:
a r i flow rack door insert [P/N 327281-B21 (42U) or P/N 157847-B21 (22U)] to provide
pro per front-to-back airflow and cooling.
CAUTION:
ad equate airflow and to prevent damage t
Front and rear doors—If the 42U rack includes closing front and rear doors, you must allow
•
5,350 sq cm (830 sq in)
airflow (equivalent to the
Side—The clearance between the installed rack component and the side panels of the
•
must be a minimum of 7 cm (2
mum clearance of 121.9 cm (48 in) from the back of the rack to the back of another
gh the front door and expel warm air through the rear door. Therefore,
To prevent improper cooling and damage to the equipment, do not block
Always use blanking panels to fill empty vertical spaces in the rack. This
When using a Compaq branded 7000 Series rack, you must install the high
If a third-party rack is used, observe the following additional requirements to ensure
of holes evenly distributed from top to bottom to permit adequate
required 64 percent open area for ventilation).
er or rack component, the gaps between the
o the equipment:
.75 in).
the front and back of the server
the
Setup 9
per
rack