• Never lift the chassis alone—Always use two people to lift the chassis. If available, use a scissor jack
or other lifting device designed for installing heavy equipment into data center racks.
•
Disconnect all power and external cables before lifting the chassis.
•
Remove all FEXes, power supplies, fans, and servers from the chassis before lifting.
•
Ensure that your footing is solid and the weight of the system is evenly distributed between your feet.
•
Lift the system slowly, keeping your back straight. Lift with your legs, not with your back. Bend at the
knees, not at the waist.
Do not remove the Power Distribution Unit (PDU) located at the back of the chassis.Caution
Installation Guidelines
When installing the chassis, follow these guidelines:
•
Plan your site configuration and prepare the site before installing the chassis. See Site Planning and
Maintenance Records, on page 97 for the recommended site planning tasks. For details, see the Cisco
UCS Site Preparation Guide.
•
Record the information listed in Site Planning and Maintenance Records, on page 97 as you install and
configure the chassis.
•
Ensure that there is adequate space around the chassis to allow for servicing the chassis and for airflow.
•
Ensure that the air-conditioning meets the heat dissipation requirements listed in Technical Specifications,
on page 85
•
Ensure that the cabinet or rack meets the requirements listed in Rack Requirements, on page 42.
Jumper power cords are available for use in a rack. See Specifications for the Cisco
UCS 5108 Blade Server Chassis Power Supply Units, on page 88.
Note
•
Ensure that the site power meets the power requirements listed in Technical Specifications, on page
85. We recommend that you use a UPS to protect the UCS system. Using an unprotected supply exposes
you to a risk of system failure due to input supply voltage variations or failures.
Avoid UPS types that use ferroresonant technology. These UPS types can become unstable with systems
such as the Cisco UCS, which can have substantial current draw fluctuations due to fluctuating data
traffic patterns.
•
Ensure that circuits are sized according to local and national codes. For North America, the power supply
requires a 20 A circuit.
To prevent loss of input power, ensure that the total maximum loads on the circuits supplying power to
the chassis are within the current ratings for the wiring and breakers.
•
Use the following torque values when installing the chassis:
◦
10-32 screws: 20 in-lb
Cisco UCS 5108 Server Chassis Installation Guide
44
Installation
Installation Guidelines
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