Rack Stability; Airflow Requirements - Compaq ProLiant DL760 Maintenance And Service Manual

42–62 kg
93–137 lb

Rack Stability

Airflow Requirements

The Compaq ProLiant DL760 server draws cool air in through the front door and exhausts warm
air through the rear door. Therefore, the front door of the rack 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 rack. Do not block the ventilation apertures. Clearance
from the back of the rack to the rear of another rack or row of racks should be at least 48 inches.
High Airflow Rack Door Insert
The increased power of new processor technology requires increased cooling efficiency for
rack-mounted servers. The new Compaq Rack 9000 series provides enhanced airflow for
maximum cooling, allowing these racks to be fully loaded with servers using the latest
processors.
When installing this server in Compaq Rack 7000 and 4000 series racks, the new processor
technology requires the installation of a new Compaq High Airflow Rack Door Insert, if the
rack has a LEXAN front door.
This symbol indicates that the component exceeds the recommended weight for
one individual to handle safely.
WARNING: To reduce the risk of personal injury or damage to the equipment,
observe local occupational health and safety requirements and guidelines for
manual material handling.
WARNING: To reduce the risk of personal injury or damage to the equipment, be sure that:
I The leveling jacks are extended to the floor.
I The full weight of the rack rests on the leveling jacks.
I The stabilizing feet are attached to the rack if it is a single rack installation.
I The racks are coupled together in multiple rack installations.
I Only one component is extended at a time. A rack may become unstable if more than one
component is extended for any reason.
CAUTION: If a third-party rack is used, the following minimum requirements should be
observed to ensure adequate airflow to the server:
I Front and rear doors should have 64% open area (equivalent to 830 square inches of
space on a 42U rack) for airflow with holes evenly distributed from top to bottom to permit
adequate air flow.
I Side clearance between the installed server and the side panels of the rack must be a
minimum of 2.75 inches.
CAUTION: If not all of the vertical space in the rack is filled by components, the gaps left will
cause a change in airflow through the rack and across the components. Cover these gaps with
rack blanking panels.
About This Guide ix