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WARNING:
the rack.
WARNING:
internal system components to cool before touching them.
WARNING:
•
Never reach inside the chassis while the system is powered up.
Perform service on system components only as instructed in the user documentation.
•
CAUTION:
grounding procedures before beginning any installation procedure. Improper grounding can
result in ESD damage to electronic components. For more information, refer to "Electrostatic
discharge (on page 37)."
CAUTION:
the system. However, it may be necessary to leave the server powered up when performing other
operations, such as hot-plug installations or troubleshooting.
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:
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. Cover all gaps with blanking
panels to maintain proper airflow.
CAUTION:
ensures proper airflow. 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 percent open area for ventilation.
CAUTION:
insert (PN 327281-B21 for 42U rack, PN 157847-B21 for 22U rack) to provide proper
front-to-back airflow and cooling.
Be sure to install chassis starting from the bottom of the rack and work your way up
To reduce the risk of personal injury from hot surfaces, allow the drives and the
To reduce the risk of electric shock or damage to the equipment:
Always be sure that equipment is properly grounded and that you follow proper
When performing non-hot-plug operations, you must power down the server and/or
To prevent improper cooling and damage to the equipment, do not block the
Always use blanking panels to fill empty vertical spaces in the rack. This arrangement
When using a Compaq branded 7000 series rack, install the high airflow rack door
Planning the installation 7
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