Cisco N20C6508UPG, UCS 5100, UCS 5108 User Manual
Installation
This chapter contains the following sections:
Installation Notes and Warnings for the Cisco UCS 5108 Server Chassis, page 1
•
Installing the Chassis, page 7
•
Repacking the Chassis, page 23
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SFP+ Transceivers, page 23
•
Installation Notes and Warnings for the Cisco UCS 5108 Server Chassis
The following notes and warnings apply to all installation tasks:
Note
Warning
Warning
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Before you install, operate, or service the system, see the Regulatory Compliance and Safety Information
for Cisco UCS for important safety information.
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with
standard practices for preventing accidents. Use the statement number provided at the end of each warning
to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS
This unit is intended for installation in restricted access areas. A restricted access area can be accessed
only through the use of a special tool, lock and key, or other means of security. Statement 1017
Cisco UCS 5108 Server Chassis Installation Guide
Rack Requirements
Installation
Warning
Only trained and qualified personnel must be allowed to install, replace, or service this equipment.
Statement 1030
Rack Requirements
This section provides the requirements for installing in a standard open rack, assuming an external ambient
air temperature range of 50 to 95°F (10 to 35°C):
Note
Do not use racks that have obstructions. These obstructions could impair access to field-replaceable units
(FRUs).
The Cisco R Series Racks are an ideal choice. If other racks will be used, the rack must be of the following
type:
Standard 19-inch (48.3 cm) four-post EIA rack, a minimum of 39.4 inches (100 cm) deep, with mounting
•
rails that conform to English universal hole spacing per section 1 of ANSI/EIA-310-D-1992.
The mounting holes of the rails in the rack must be square (unless the optional round hole adapter kit is
•
used).
The tool-less rack-mount kit shipped with the chassis is required. The adjustable rack rails shipped with
•
each enclosure extend from 29 inches (73.66 cm) to 35 inches (88.9 cm)
• Front and rear doors—If your server rack includes closing front and rear doors, the doors must have 65
percent open perforated area evenly distributed from top to bottom to permit adequate airflow.
Caution
The rack must also meet the following requirements:
The minimum available vertical rack space per chassis must be six RU (rack units), equal to 10.5 inches
•
(26.7 cm).
Cable Management
To help with cable management, allow additional space in the rack above and below the chassis to make it
easier to route copper cables (plus up to eight copper cables per Cisco UCS 5108 server chassis) through the
rack.
Cable management can be an important factor in preventing overheating issues. In the following figure, the
“before“ illustration shows cables blocking the rear of the chassis, and preventing the fans from exhausting
warm air from the chassis. This situation causes failed DIMMs in the blade servers, and seemingly random
Always use blanking panels to fill all remaining empty front panel U-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.
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Before
After
Installation
Airflow Considerations
server shutdowns when internal temperatures exceed specification. Use cable ties and other wiring practices
to keep the rear of the chassis unobstructed as shown in the “after“ illustration.
Figure 1: Cable Management
Airflow Considerations
Airflow through the chassis is from front to back. Air enters the chassis through the blade servers and power
supply grills at the front of the chassis and exits through the fan modules on the back of the chassis. To ensure
proper airflow, follow these guidelines:
Maintain ambient airflow throughout the data center to ensure normal operation.
•
Consider the heat dissipation of all equipment when determining air-conditioning requirements. Do not
•
allow the exhaust of one system to be the intake for another system.
When evaluating airflow requirements, take into consideration that the hot air generated by equipment
•
at the bottom of the rack can be drawn in the intake of the equipment above.
Make sure that the exhaust at the rear of the chassis is unobstructed for at least 24 in. (61 cm). This
•
includes obstruction due to messy cabling practices.
Some blade servers ship with internal shrouds that are placed over the DIMMs and CPUs. They are used
•
to channel airflow to where it is needed the most. If a shroud can be used a given model, it should be
used.
If an enclosed rack is used, the front door must be 65 percent perforated to ensure adequate airflow to
•
the servers.
Cisco UCS 5108 Server Chassis Installation Guide
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Moving Server Chassis
Moving Server Chassis
When lifting the chassis, be aware of its weight, and follow these guidelines:
Installation
Caution
Do not try to lift the chassis using the handles on the side. These handles are intended only for moving
and adjusting the chassis position.
• 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 for the recommended site planning tasks. Further detail is provided in the Cisco
UCS Site Preparation Guide.
Record the information listed in Site Planning and Maintenance Records 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
•
Ensure that the cabinet or rack meets the requirements listed in Rack Requirements, on page 2.
•
Note
Ensure that the site power meets the power requirements listed in Technical Specifications. If available,
•
you can use an uninterruptible power supply (UPS) to protect against power 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.
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Jumper power cords are available for use in a rack. See Specifications for the Cisco
UCS 5108 Blade Server Chassis Power Supply Units.
Installation
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:
•
Required Equipment
Before you begin the installation, ensure that you have the following items:
Number 1 and number 2 Phillips-head screwdrivers with torque measuring capabilities
•
Tape measure and level
•
ESD wrist strap or other grounding device
•
10-32 screws: 20 in-lb
◦
Required Equipment
Antistatic mat or antistatic foam
•
Unpacking and Inspecting the Chassis
When handling chassis components, wear an ESD strap and handle modules by the carrier edges only.Caution
Keep the shipping container in case the chassis requires shipping in the future.Tip
Note
Step 1
Step 2
The chassis is thoroughly inspected before shipment. If any damage occurred during transportation or any
items are missing, contact your customer service representative immediately.
Procedure
Remove the chassis from its cardboard container. Save all packaging material.
Compare the shipment to the equipment list provided by your customer service representative and verify that
you have received the following items:
Any printed documentation
•
• Tool-less rack-mount kit (N20-CRMK2=)—mounting rails can be installed in a rack without the use of
tools. The optional round hole adapter kit (N20-CRMK2-RHA=) does require tools.
ESD wrist strap
•
Cables with connectors (including the N20-BKVM=, which is the KVM/local I/O console dongle)
•
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279771
1
2
3
Attaching the Round Hole Adapter Kit to the Rails (Optional)
Any optional items ordered
•
Installation
Step 3
Verify that all unused blade slots and power supply bays have blank covers.
Attaching the Round Hole Adapter Kit to the Rails (Optional)
Note
Step 1
Step 2
Step 3
The chassis tool-less rails are designed for racks that have square mounting holes. You must use the round
hole adapters (N20-CRMK2-RHA=) to install the chassis in racks that have round mounting holes.
This round hole adapter kit allows you to adapt the rail kit (N20-CRMK2=) to install into rack (front and/or
rear) posts that use either threaded or non-threaded round holes. Four adapters in the kit are for adapting the
rail kit to install into rack posts with threaded round holes, and the other four adapters in the kit are for adapting
the rail kit to install into rack posts with non-threaded round holes. You can use a combination of adapters
based on the type of holes in the rack posts. Various sizes and lengths of screws are also included in the kit.
Procedure
Insert the adapter tab into the mounting rail as shown in callout 1.
Slide the adapter up to lock it into position as shown in callout 2.
Secure the adapter into place using the provided pan-head screw as shown in callout 3.
Figure 2: Attaching the Round Hole Adapter (Optional)
Step 4
Repeat steps 1to 3 for the other three adapters.
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Installation
Installing the Chassis
This section describes how to install the chassis. This two part process consists of installing the rails into the
rack and then installing the chassis into the rack and on to the rails.
Installing the Chassis
Caution
Caution
Never attempt to lift the chassis by using an installed module’s handle as a grip point. only use the handles
on the sides of the chassis.
If the rack has wheels, ensure that the brakes are engaged, the stabilizing pads are extended, or that the
rack is otherwise stabilized.
Table 1: Contents of the Cisco UCS 5108 Server Chassis Rack-Mount Kit (N20-CRMK2=)
Part DescriptionQuantity
Left tool-less rack mount rail1
Right tool-less rack mount rail1
10-32 X 0.75 Phillips round washer head screws6
10-32 X 0.125 cage nuts6
Table 2: Contents of the Cisco UCS 5108 Server Round Hole Adapter Kit (N20-CRMK2-RHA=)
Part DescriptionQuantity
Round hole adapters (threaded)4
Round hole adapters (un-threaded)4
Adapter securing screws4
Phillips head screws for securing the rails to the rack16
Warning
The plug-socket combination must be accessible at all times, because it serves as the main disconnecting
device. Statement 1019
Cisco UCS 5108 Server Chassis Installation Guide
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192517
Sl
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de-adjust
192731
.250
.625
.625
.500
Installing the Rails
Installing the Rails
Procedure
Installation
Step 1
Step 2
Step 3
Remove the mounting template (Cisco 78-19093-01) from the accessory box. The template is designed to
show you the proper holes within which the rails and cage nuts should be placed. Once the rack holes line up
with the template, you should mark the holes so that their position is known after removing the template.
Adjust the length of the rail by sliding the ends of the rail back and forth until they match the depth of the
rack.
Figure 3: Adjusting the Tool-less Rack Mount Rail
Place the two hooks at each end of the rail into the first two holes at a rack unit boundary.
Figure 4: Hole Spacing for the Tool-less Rails in Relationship to a Rack Unit
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