Apple NMB-003 Personal Computer User Manual


 
20 Chapter 2
m Lift with a smooth motion; don’t jerk the load up or down.
m Keep the system close to your body and at waist level to lessen the load on your back.
m Maintain body alignment while lifting, so that your back, ears, shoulders, and hips are
in line and your eyes and feet are facing the system.
m To turn while holding the system, use your feet; don’t twist your back or torso.
Choosing the System’s Location in the Rack
The Xserve RAID system is designed for use in a four-post rack or cabinet. The rack must be
19 inches wide; it can vary in depth from 24 to 36 inches.
When determining where to place the system in a four-post rack, keep the following points
in mind:
m Because of the system’s weight, you may want to install it at or below the middle of the
rack.
m Measure the height needed in the rack (3U, or 5.25 inches at minimum).
m Also measure the depth of the rack and the distance between the back panel of the
system and the rear rail of the rack. This measurement will help you determine which of
the bracket extenders to use when mounting the system in the rack.
m Air to cool the system flows from front to back. Be sure not to cover any of the ventilation
holes in the front or back panels of the unit. Consistent airflow is essential to keep the
system operating efficiently.
m Allow room at the front and back of the system for service. Leave at least 36 inches clear
in front of the system, so that you can easily swap drive modules and remove the system
from the rack if necessary. Leave 24 to 30 inches clear behind the system to install or
exchange components.
Important Do not try to install an Xserve RAID system in a two-post, or telco-style, rack.
The system cannot be mounted safely in a two-post rack.
Do not block
the air flowing
through the unit.
Remove the clear plastic film that
covers the front so that
airflow is not
restricted.