Planning the Server Installation
HP servers draw in cool air through the rack front door and expel warm air through
the rack rear door. Therefore, the front and rear rack doors must be adequately
ventilated to allow ambient room air to enter the cabinet and warm air to escape from
the rear of the cabinet.
IMPORTANT:
Do not block the ventilation openings.
NOTE:
It is recommended that rows of racks be arranged where front panels on one row face
the front panels of opposite rows and the back panels of racks face the backs of racks in
opposite rows.
When there is any vertical space in the rack not filled by servers or rack components,
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.
Compaq branded 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.
CAUTION:
When using a Compaq branded 7000 Series rack, the high airflow rack
door insert must be installed [P/N 327281-B21 (42U) and P/N 157847-B21 (22U)] to
provide proper front-to-back airflow and cooling.
CAUTION:
If a third-party rack is used, observe the following additional
requirements to ensure adequate airflow and to prevent damage to the equipment:
•
Front and rear doors: if the 42U server rack includes closing front and rear
doors, 5,350 sq cm (830 square inches) of holes evenly distributed from top to
bottom must be available to permit adequate airflow (equivalent to the required
64 percent open area for ventilation).
•
Side panels: The clearance between the installed rack component and the side
panels of the rack must be a minimum of 7 cm (2.75 inches).
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.
HP ProLiant DL320 Generation 2 Server Setup and Installation Guide
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HP CONFIDENTIAL
Writer: Anna Roberts File Name: c-ch2 Planning the Server Installation.doc
Codename: MoonStar Part Number: 293166-002 Last Saved On: 1/31/03 11:14 AM
