Cisco Nexus 93128TX Manual de usuario

Installing the Chassis

•Installation Options with Rack-Mount Kits, Racks, and Cabinets, on page 1

•Install a Rack, on page 2

•Unpacking and Inspecting a New Switch, on page 2

•Planning How to Position the Chassis in the Rack, on page 3

•Installing the Chassis in a Two-Post Rack, on page 4

•Installing the Chassis in a Four-Post Rack, on page 8

•Grounding the Chassis, on page 13

•Powering Up the Switch, on page 15

Installation Options with Rack-Mount Kits, Racks, and Cabinets

The rack-mount kit enables you to install the switch into racks of varying depths. You can position the switch

with easy access to either the port connections or the fan and power supply modules.

You can install the switch using the following rack-mount options:

• Rack-mount kit (N9K-C9300-RMK) which you can order from Cisco.

You can install the switch in the following types of racks:

• Open EIA rack

• Perforated EIA cabinet

The rack or cabinet that you use must meet the requirements listed the in General Requirements for Cabinets

and Racks section.

You are responsible for verifying that your rack and rack-mount hardware comply with the guidelines that

are described in this doc.

Note

Installing the Chassis

Install a Rack

Before you install the switch, you must install a standard two- or four-post, 19-inch EIA data center rack (or

a cabinet that contains such a rack) that meets the requirements listed in Overview of Racks.

Step 1 Bolt the rack to the concrete subfloor before moving the chassis onto it.

Statement 1048—Rack Stabilization

The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before installation or

servicing. Failure to stabilize the rack can cause bodily injury.

Warning

Step 2 If the rack has bonded construction, connect it to the earth ground. This action enables you to easily ground the switch

and its components and to ground your electrostatic discharge (ESD) wrist strap to prevent damaging discharges when

you handle ungrounded components before installing them.

Step 3 Include one or two power sources at the rack. For AC power, provide a power receptacle. For DC power, provide a circuit

breaker with terminals for connecting power cables.

Statement 1018—Supply Circuit

To reduce risk of electric shock and fire, take care when connecting units to the supply circuit so that wiring

is not overloaded.

Warning

If you are not using power redundancy or are using n+1 redundancy, you need only one power source. If you

are using n+nredundancy, you need two power sources.

Note

Unpacking and Inspecting a New Switch

Before you install a new chassis, you need to unpack and inspect it to be sure that you have all the items that

you ordered and verify that the switch was not damaged during shipment. If anything is damaged or missing,

contact your customer representative immediately.

When you handle the chassis or its components, you must follow ESD protocol at all times to prevent ESD

damage. This protocol includes but is not limited to wearing an ESD wrist strap that you connect to the earth

ground.

Caution

Do not discard the shipping container when you unpack the switch. Flatten the shipping cartons and store

them. If you need to move or ship the system in the future, you will need this container.

Tip

Step 1 Compare the shipment to the equipment list that is provided by your customer service representative and verify that you

have received all of the ordered items.

Installing the Chassis

Install a Rack

The shipment should include the following:

• Switch chassis, which includes the following installed components:

• One uplink module:

• M4PC uplink module

• M6PQ uplink module

• M6PQ-E uplink module

• M12PQ uplink module

• Two power supplies (any combination of the following with the airflow direction being the same as for the fan

modules):

• 1200-W HVAC/HVDC power supply

• Dual-direction HVAC/HVDC power supply with white coloring (N9K-PUV-1200W)

• 930-W DC power supply

• Port-side exhaust airflow with gray coloring (UCS-PSU-6332-DC)

• Port-side intake airflow with green coloring (UCSC-PDU-930WDC)

• Three fan modules (all fan and power supply modules must have the same airflow direction)

• Port-side exhaust airflow with blue coloring (N9K-C9300-FAN2-B)

• Port-side intake airflow with burgundy coloring (N9K-C9300-FAN2)

• Switch accessory kit

• Rack mount kit

Step 2 Check the contents of the box for damage.

Step 3 If you notice any discrepancies or damage, send the following information to your customer service representative by

email:

• Invoice number of the shipper (see the packing slip)

• Model and serial number of the missing or damaged unit

• Description of the problem and how it affects the installation

Planning How to Position the Chassis in the Rack

The switch is designed so that you can have coolant air flow through the switch in one of the two following

directions:

• Enter the port side and exhaust out the power supply side (port-side intake airflow)

Installing the Chassis

Planning How to Position the Chassis in the Rack

• Enter the power supply side and exhaust out the port side (port-side exhaust airflow)

For port-side intake airflow, the switch must have port-side intake fan and AC power supply modules with

one or more of the following colorings:

• Burgundy coloring on fan modules and AC power supplies

• Green coloring on DC power supplies

• White coloring on 1200-W HVAC/HVDC power supplies (dual-direction airflow power supplies with

their airflow direction set by the fan modules)

For port-side exhaust airflow, the switch must have port-side exhaust fan and AC power supply modules with

one or more of the following colorings:

• Blue coloring on fan modules and AC power supplies

• Gray coloring on DC power supplies

• White coloring on 1200-W HVAC/HVDC power supplies (dual-direction airflow power supplies with

their airflow direction set by the fan modules)

You can plan the positioning of the switch so that its ports are located close to ports on connected devices or

so that the fan and power supply modules are conveniently located in a maintenance aisle, and then order the

modules that move coolant air in the appropriate direction from the cold aisle to the hot aisle.

All fan and power supply modules in the same switch must operate with the same direction of airflow and

the air intake portion of the switch must be located in a cold aisle.

Note

Installing the Chassis in a Two-Post Rack

Before you install the chassis, be sure that the rack is fully secured to the data center floor.

You must attach mounting brackets to the chassis before mounting the chassis.

Attaching Center-Mount Brackets to the Chassis

You need to attach a right-angled bracket to each side of the chassis. This bracket centers the chassis and

secures it in place on a two-post rack.

Installing the Chassis

Installing the Chassis in a Two-Post Rack

Statement 1006—Chassis Warning for Rack-Mounting and Servicing

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to

ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the

unit in the rack.

Warning

Before you begin

• You must separately order the center-mount brackets if you are installing the chassis in a two-post rack.

These brackets do not ship with the chassis unless you specifically order them.

• You must have the following tools and equipment:

• Manual Phillips-head torque screwdriver

• Center-mount bracket kit

Step 1 Align one of the two center-mount brackets on the left or right side of the chassis and be sure that the angled portion is

facing the front of the chassis (see the following figure).

Be sure to align four of the screw holes on the larger side of the bracket with the four screw holes near the center of the

left or right side of the chassis.

Four M4 x 8 mm screws used to fasten the bracket to

the chassis.

2Center-mount bracket with its larger side facing the

chassis and the longer side facing the front (port side)

of the chassis. Align four screw holes in the bracket

to four screw holes in the side of the chassis.

Step 2 Use four M4 x 8 mm screws to attach the bracket to the chassis. Tighten each screw to 11 to 15 in-lb (1.2 to 1.7 N·m).

Step 3 Repeat Steps 1 and 2 to attach the second center-mount bracket to the other side of the chassis.

Installing the Chassis

Attaching Center-Mount Brackets to the Chassis

What to do next

You are ready to mount the chassis to the two-post rack.

Installing the Chassis in a Two-Post Rack

You need to position the chassis near the top of the rack with the power supply and fan modules in the

appropriate aisle for their required airflow. If the fan modules have a blue coloring for port-side exhaust

airflow, then you must position the modules by the cold aisle. If the fan modules have a burgundy coloring

for port-side intake airflow, you must position the modules by the hot aisle.

Power supply modules must have the same airflow direction as the fan modules.

Note

Power supply modules must have the same airflow direction as the fan modules but might have different

coloring if they use DC power (green coloring for port-side intake airflow or gray coloring for port-side

exhaust airflow). HVAC/HVDC power supplies with white coloring use the same direction of airflow as used

by the fan modules.

Note

Statement 1074—Comply with Local and National Electrical Codes

To reduce risk of electric shock or fire, installation of the equipment must comply with local and national

electrical codes.

Warning

Statement 1032—Lifting the Chassis

To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles

on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the

weight of the unit.

Warning

Before you begin

• Make sure that the two-post rack is properly installed and secured to the concrete subfloor.

• Make sure that two center-mount brackets are securely fastened to the middle of each side of the chassis.

• Make sure that you have six customer-supplied rack-mount screws (typically M6 x 10 mm or the

appropriate screw for the vertical mounting rails on the rack).

• You have at least two people to install the chassis.

Installing the Chassis

Installing the Chassis in a Two-Post Rack

Statement 1006—Chassis Warning for Rack-Mounting and Servicing

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to

ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the

unit in the rack.

Warning

Step 1 Use one person to position the chassis so that it is near the top of the rack with the fan and power supply modules in the

appropriate aisle and the center-mount bracket has its screw holes aligned to screw holes on the two-post rack.

If these modules have a blue or gray coloring for port-side exhaust airflow, then you must position the modules by the

cold aisle. If the modules have a burgundy or green coloring for port-side intake airflow, you must position the modules

by the hot aisle.

Three customer-supplied screws (typically M6 x 10

mm screws or the appropriate screws for the rack) to

hold each side of the chassis to the two-post rack.

Step 2 Use the second person to secure the three customer-supplied rack-mount screws (typically M6 x 10 mm or other appropriate

screws for the rack) on each center-mount bracket to attach the chassis to the rack. Tighten each screw to the appropriate

torque setting for the screws (for M6 x 10 mm screws, use 40 in-lbs [4.5 N·m] of torque).

Installing the Chassis

Installing the Chassis in a Two-Post Rack

Installing the Chassis in a Four-Post Rack

Before you install the chassis, be sure that the rack is fully secured to the data center floor.

Installing the Switch using the N9K-C9300-RMK Rack-mount Kit

Attaching the Bottom-Support Rails to the Rack

The switch chassis that you are installing ships with two adjustable bottom-support rails that you can attach

to a four-post rack to hold the chassis. Each of these bottom-support rails has two pieces—one that slides into

the other so that you can adjust them to fit racks with front and rear mounting posts that are spaced less than

36 inches (91 cm). On each bottom-support rail, the rail half that slides into the other rail includes a chassis

stop that fits into the module end of the chassis. Depending on direction of the chassis airflow, you need to

position the rail half with the chassis stop so that the fan and power supply modules end up in the appropriate

aisle as follows:

• Port-side intake (burgundy coloring for fan modules) airflow requires that the bottom-support rail with

the chassis stop be located on the hot aisle side of the rack.

• Port-side exhaust (blue coloring for fan modules) airflow requires that the bottom-support rail with the

chassis stop be located on the cold aisle side of the rack.

Statement 1074—Comply with Local and National Electrical Codes

To reduce risk of electric shock or fire, installation of the equipment must comply with local and national

electrical codes.

Warning

Before you begin

Before you can install the bottom support rails for the chassis, you must do the following:

• Verify that a four-post rack or cabinet is installed.

• If any other devices are stored in the rack or cabinet, verify that the heavier switches are installed below

lighter switches.

• Verify that the bottom-support rails kit is included in the switch accessory kit.

• Verify that you have 8 screws for attaching the bottom support brackets to the racks (typically M6 x 10

mm screws or the screw appropriate for the vertical mounting rails on the rack.

Installing the Chassis

Installing the Chassis in a Four-Post Rack

Statement 1006—Chassis Warning for Rack-Mounting and Servicing

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to

ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the

unit in the rack.

Warning

Step 1 Look at the fan and power supply modules installed in the chassis to determine how you must position the bottom-support

rails on the rack.

• If the fan modules have blue coloring (port-side exhaust modules), you must position the bottom support rails so

that the chassis stop is positioned by the cold aisle.

• If the fan modules have burgundy (port-side intake modules), you must position the bottom support rails so that the

chassis stop is positioned by the hot aisle.

Step 2 Separate the two sliders that make up one bottom-support rail and position the half with the chassis stop by the appropriate

aisle for the fan and power supply modules. Also make sure that there is at least 1 rack unit open above the bottom-support

rails so that you can easily install the chassis.

Step 3 Use two customer-supplied screws (typically M6 x 10 mm screws) to attach the bottom-support rail half to the vertical

mounting rails on the rack post. Tighten each screw to the appropriate torque setting for the screws (for M6 x 10 mm

screws, use 40 in. lbs [4.5 N·m] of torque).

Step 4 Slide the other half of the bottom-support rail onto the attached half of the rail set and use two customer supplied screws

(typically M6 x 10 mm screws) to secure that portion to the vertical mounting rails on the rack. Tighten each screw to

the appropriate torque setting for the screws (for M6 x 10 mm screws, use 40 in. lbs [4.5 N·m] of torque).

Installing the Chassis

Attaching the Bottom-Support Rails to the Rack

Figure 1: Positioning an Expanding Bottom-Support Rail Set

2 screws holding the front

end of the bottom-support

bracket to the front side of

the rack

32 screws holding one end of

the bottom-support bracket

to the rear of the rack

Chassis stop on the

expanding bottom-support

bracket

Step 5 Repeat Steps 2 and 3 to attach the other expanding bottom-support rails to the other side of the rack.

Check the two installed bottom support rails to be sure that both have their chassis stops by the same aisle

(either both by the hot aisle or both by the cold aisle) and that both rails are level and level with each other. If

they are not level, adjust the higher rail down to the level of the lower rail.

Note

What to do next

You are ready to install two front-mount brackets on the chassis.

Attaching Front-Mount Brackets to the Chassis

You need to attach a right-angled bracket to each side of the chassis. This bracket holds the chassis in place

on a four-post rack.

Installing the Chassis

Attaching Front-Mount Brackets to the Chassis

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