Installation guide

Planning the Server Installation 2-3
Compaq Confidential – Need to Know Required
Writer: CDresden Project: Compaq ProLiant ML370 Generation 2 Server Setup and Installation Guide Comments: Graphics Replaced - Checked
Part Number: 203510-001 File Name: c-ch02 Planning the Server Installation-J.doc Last Saved On: 7/12/01 1:25 PM
When there is any 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.
Compaq 9000 Series racks provide proper server cooling from flow-through
perforations in the front and rear doors that provide 64 percent open area for
ventilation. Refer to the rack documentation provided with Compaq 7000
Series and third-party racks for additional guidelines on meeting airflow
requirements.
CAUTION: When using a Compaq 7000 Series rack, you must install the high
airflow rack door insert [P/N 327281-B21 (42U) and P/N 157847-B21 (22U)] to
provide proper front-to-back airflow and cooling to prevent damage to the
equipment.
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 your 42U server rack includes closing front and
rear doors, you must allow 5,350 sq cm (830 square inches) of holes
evenly distributed from top to bottom to permit adequate airflow
(equivalent to the required 64 percent 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 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.
To allow for servicing and adequate airflow for your tower server, observe the
following requirements:
■ Select a sturdy, level installation site that includes dedicated and
properly grounded circuits, air conditioning, and static electricity
protection.
■ Leave at least a 7.6-cm (3-inch) clearance space at the front and back of
the server for proper ventilation.
■ Provide a separate electrical circuit for the server.