Cisco Nexus 7000 Series Hardware Installation and Reference Guide

Required Tools

Before you install the Cisco Nexus 7009 chassis into a rack, make sure that you have the following tools and equipment:

• Mechanical lift capable of lifting 300 pounds (136 kg)
• Number 1 Phillips screwdriver with torque capability
• 3/16-inch flat-blade screwdriver
• Crimping tool
• Wire stripping tool
• Tape measure and level
• Grounding cable

Note These tools and equipment do not ship with the chassis.

Additional tools and equipment, such as an electrostatic discharge (ESD) wrist strap, that you will also need to install the Cisco Nexus 7009 chassis, are included in the Cisco Nexus 7009 accessory kit. To see what is included in the accessory kit, see the “Cisco Nexus 7009 Switch Accessory and Optional Kits” section.

Caution When you handle the Cisco Nexus 7009 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.

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Note For a list of tools required to assemble and secure the rack or cabinet, see the documentation that the manufacturer shipped with the rack or cabinet.

Installing a Rack or Cabinet

Before you install the Cisco Nexus 7009 chassis, you must install a qualified two- or four-post, 19-inch EIA data center rack (or a cabinet that contains such a rack) that meets the requirements listed in the Cisco Nexus 7000 Series Site Preparation Guide. To maximize safety, you should do the following for the rack:

• Bolt the rack to the concrete subfloor before moving the Cisco Nexus 7009 chassis onto it.

Warning Stability hazard. The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before you slide the unit out for servicing. Failure to stabilize the rack can cause the rack to tip over. Statement 1048

• If the rack has bonded construction, connect it to the earth ground to enable you to easily ground the system components that you install and to ground your ESD wrist strap. This step minimizes the chance of electrostatic discharge when you handle ungrounded components before you install them.

If you are using AC power, be sure that the rack includes AC power receptacles with the amperage required for the power supply units that you will be installing in the chassis. If you are installing 6-kW power supply units, you must have 20-A circuits. If you are installing 7.5-kW power supply units, you must have 30-A circuits.

If you are using DC power, be sure that the DC power supply is grounded and that there is direct access to the facility DC power or indirect access though a power interface unit (PIU). You must connect the DC power supply to the earth ground before connecting it to the facility DC power.

Warning Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018

For instructions on setting up the rack, see the documentation that the manufacturer shipped with the rack.

Unpacking and Inspecting a New Switch

Before you install a new Cisco Nexus 7009 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.

Tip Do not discard the shipping container when you unpack the Cisco Nexus 7009 system. Flatten the shipping cartons and store them with the pallet used for the system. If you need to move or ship the system in the future, you will need these containers.

To inspect the shipment, follow these steps:

Step 1 Compare the shipment to the equipment list provided by your customer service representative and verify that you have received all of the ordered items. The shipment should include boxes for the following:

• System chassis, which includes the following installed components:

– 2 supervisor modules

– 1 to 7 I/O modules

– 3 to 5 fabric modules

– 1 fan tray

• 1 to 2 power supply units

The power supply units are shipped with the chassis but are boxed separately.

• Cisco Nexus 7009 system accessory kit

To see a list of what is in the accessory kit, see the “Cisco Nexus 7009 Switch Accessory and Optional Kits” section.

• Cable management frames

– Left and right cable management frames

– Top hood

• Center-mount kit (optional—must be ordered separately for center-mount installations)

– Left and right center-mount bottom-support rails

– Left and right center-mount vertical mounting brackets

• Door and air intake frame (optional)

Step 2 Check the contents of each box or package for damage.

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

• 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

Prerequisites for Attaching the Bottom-Support Rails

Before you can attach the bottom-support rails, you must fully install the rack or cabinet and use bolts to anchor the rack to the concrete subfloor. To maximize the stability of the rack, install everything as low as possible on the rack with heavier items below lighter items. Be sure that there is 15 RU available for installing the Cisco Nexus 7009 chassis (14 RU) and its bottom-support rack (1 RU).

Required Tools and Equipment

You need the following tools and equipment to attach the bottom-support rails:

• Number 1 Phillips-head screwdriver with torque capability.
• One of the following types of bottom-support rails:

– Front-mount bottom-support rails (shipped with the Bottom-Support Kit, which is found in the accessory kit or ordered separately [part number N7K-C7009-BSK])

– Center-mount bottom-support rails (not shipped with the chassis unless special ordered [part number N7K-C7009-CMK])

Table 3-1 lists the items in the Bottom-Support Kit and Table 3-2 lists the items in the Center-Mount Kit.

Attaching the Front-Mount Bottom-Support Rails

To maximize the stability of the rack, you should install the chassis as low as possible on the rack. Install the heaviest chassis first at the bottom of the rack. If you install a second chassis in the same rack, install it immediately above the lower chassis if there is enough vertical space.

Warning

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. Statement 1006

To attach the front-mount bottom-support rails to a two- or four-post EIA rack, follow these steps:

Step 1 Position one of the two front-mount bottom-support rails at the lowest possible RU on the rack. If you are installing a chassis above another Cisco Nexus 7009 chassis, position the rail 26.25 inches (66.7 cm) (15 RU) above the bottom-support rails for the lower chassis as shown in Figure 3-1.

Note When installing the chassis without bottom-support rails, you can skip this step.

Figure 3-1 Positioning the Front-Mount Bottom-Support Rails

Step 2 Use a Phillips screwdriver to screw in two or three (three are recommended if you have three screw holes) M6 x 19 mm or 12-24 x 3/4 in. Phillips screws on the front end of each bracket (using a total of 6 screws for both brackets) as shown in Figure 3-2.

Figure 3-2 Attaching a Front-Mount Bottom-Support Rail to a Rack

Step 3 Align the crossbar to the lower back of the two bottom-support rails and use two M4 x 8 mm screws to attach it to each rail (one screw for each rail).

Attaching the Center-Mount Bottom-Support Rails

To maximize the stability of the rack, you should install the chassis as low as possible on the rack. Install the heaviest chassis first at the bottom of the rack. If you install a second chassis in the same rack, install it immediately above the lower system if there is enough vertical space.

Warning

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. Statement 1006

To attach the center-mount bottom-support rails to a two- or four-post EIA rack, follow these steps:

Step 1 Position one of the two center-mount brackets at the lowest possible RU. If you are installing a chassis above another Cisco Nexus 7009 chassis, position the rail 26.25 inches (66.7 cm) (15 RU) above the center-mount bottom-support rails for the lower chassis as shown in Figure 3-3.

Figure 3-3 Positioning the Center-Mounted Bottom-Support Rails

Step 2 Use a Phillips screwdriver to screw in two or three (three are recommended if you have three screw holes) M6 x 19 mm or 12-24 x 3/4 inch Phillips screws on each bracket (using a total of 6 screws for both brackets) as shown in Figure 3-4.

Figure 3-4 Attaching a Center-Mount Bottom-Support Rail to a Rack

Step 3 Align the crossbar to the lower back of the two bottom-support rails and use two M4 x 8 mm screws to attach it to each rail (one screw for each rail).

Prerequisites for Installing the Chassis

Before you install the chassis, you must make sure that the following items are available for the installation:

• Data center ground that is accessible where you are installing the Cisco Nexus 7009 chassis.
• Two- or four-post, 19-inch EIA rack or cabinet that includes such a rack. These installation instructions show how to install the chassis in a two-post rack. You follow the same steps for installing the chassis on the front two posts of a four-post rack or cabinet.

For more information on the rack or cabinet, see the “Installing a Rack or Cabinet” section.

Warning Stability hazard. The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before you slide the unit out for servicing. Failure to stabilize the rack can cause the rack to tip over. Statement 1048

• Bottom-support rails that are installed in the rack or cabinet—You must already have two front-mount bottom-support rails or two center-mount bottom-support rails attached to the lowest possible rack unit on the chassis.

For more information, see the “Installing the Bottom-Support Rails on the Rack” section.

• Two front-mount brackets attached to the chassis. If you are mounting the chassis at its center to the rack or cabinet, you must also have two center-mount brackets, in the center-mount kit, which you order separately from the Cisco Nexus 7009 chassis.

Warning

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. Statement 1006

• Cisco Nexus 7009 chassis and its components that are accounted for and undamaged.

For more information, see the “Unpacking and Inspecting a New Switch” section.

Required Tools and Equipment

You need the following tools and equipment to install the Cisco Nexus 7009 chassis:

• Mechanical lift capable of lifting at least 300 pounds (136 kg)

Caution You must use a mechanical lift whenever lifting a device over 120 pounds (55 kg).

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• Number 1 Phillips-head screwdriver with torque capability
• Rack-mount kit (shipped with the Cisco Nexus 7009 system accessory kit)

Table 3-3 lists the items in the rack-mount kit.

Note You should also have at least two persons to push the chassis, which can weigh up to 300 pounds (136 kg), onto and off the mechanical lift and rack.

• If you are going to mount the center of the chassis to the rack or cabinet, you must also have the optional center-mount kit. Table 3-4 lists the items in the center-mount kit.

Mounting the Chassis by its Front Brackets

To install a Cisco Nexus 7009 chassis by its front brackets to a rack or cabinet, follow these steps:

Step 1 Load the chassis onto a mechanical lift as follows:

a. Position the mechanical lift next to the shipping pallet that holds the chassis.

b. Elevate the lift platform to the level of the bottom of the chassis (or no more than 0.25 inches [0.635 cm] below the bottom of the chassis).

c. Use at least two persons to slide the chassis fully onto the lift so that the side of the chassis touches or is close to the vertical rails on the lift. Make sure that the front and rear of the chassis are unobstructed so you can easily push the chassis into the rack.

Warning 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. Statement 1032

Caution To lift the chassis, use a mechanical lift. Use the handles on the side of the chassis for only repositioning the chassis after it is already on the mechanical lift or in the rack or cabinet.

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Step 2 Use the mechanical lift to move and align the rear of the chassis to the front of the rack or cabinet. Make sure that the bottom of the chassis is elevated to the height of the bottom-support rails or no more than 0.25 inch (0.635 cm) above the bracket.

Step 3 Use at least two persons to push the chassis onto the installed bottom-support rails until the front mount brackets come in contact with the rack rails. Push the lower half of the front side of the chassis so that the back side enters the rack first, and push until the chassis vertical front-mounting brackets or center-mounting brackets come in contact with the front of the rack. (See Figure 3-5.)

Figure 3-5 Moving a Cisco Nexus 7009 Chassis onto a Rack (Front-Mount Installation)

Step 4 Make sure that the screw holes in the chassis mounting brackets align with the screw holes in the vertical mounting rails.

Tip To adjust the placement of the chassis so that the screw holes in the chassis mounting brackets align with the screw holes in the vertical mounting rails, use the chassis handles shown in Figure 3-6.

Step 5 Use a Phillips screwdriver to screw in seven to eight M6 x 19-mm or 12-24 x 3/4-inch screws in each of the two chassis vertical mounting brackets (use a total of 12 to 14 screws for each of two mounting brackets) as shown in Figure 3-6.

Figure 3-6 Attaching the Front of the Cisco Nexus 7009 Chassis to the Rack

Mounting the Chassis by its Center Brackets

To install a Cisco Nexus 7009 chassis by its optional center bracket to a rack or cabinet, follow these steps:

Step 1 Follow these steps to replace the front-mount bracket on the chassis with center-mount brackets:

a. Remove the two front-mount brackets from the chassis by unscrewing the five screws that hold each bracket to the front sides of the chassis (see Figure 3-7).

Figure 3-7 Removing the Front-Mount Brackets

b. Position the center-mount bracket so that its five screw holes are aligned to the five screw holes used for the front-mount bracket (see Figure 3-8).

Figure 3-8 Attaching Center-Mount Brackets to the Chassis

c. Fasten the bracket to the chassis with the five screws previously removed from the front-mount bracket.

d. Repeat Steps b and c for attaching the other center-mount bracket to the other side of the chassis.

Step 2 Load the chassis onto a mechanical lift as follows:

a. Position the mechanical lift next to the shipping pallet that holds the chassis.

b. Elevate the lift platform to the level of the bottom of the chassis (or no more than 0.25 inches [0.635 cm] below the bottom of the chassis).

c. Use at least two persons to slide the chassis fully onto the lift so that the side of the chassis touches or is close to the vertical rails on the lift. Make sure that the front and rear of the chassis are unobstructed so you can easily push the chassis into the rack.

Warning 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. Statement 1032

Caution To lift the chassis, use a mechanical lift. Use the handles on the side of the chassis for only repositioning the chassis after it is already on the mechanical lift or in the rack or cabinet.

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Step 3 Use the mechanical lift to move and align the rear of the chassis to the front of the rack or cabinet. Make sure that the bottom of the chassis is elevated to the height of the bottom-support rails or no more than 0.25 inch (0.635 cm) above the bracket.

Step 4 Use at least two persons to push the chassis onto the installed bottom-support rails until the front-mount brackets come in contact with the rack rails. Push the lower half of the front side of the chassis so that the back side enters the rack first, and push until the chassis vertical front-mounting brackets or center-mounting brackets come in contact with the front of the rack. (See Figure 3-9.)

Figure 3-9 Moving a Cisco Nexus 7009 Chassis onto a Rack (Center-Mount Installation)

Step 5 Make sure that the screw holes in the chassis mounting brackets align with the screw holes in the vertical mounting rails.

Tip To adjust the placement of the chassis so that the screw holes in the chassis mounting brackets align with the screw holes in the vertical mounting rails, use the chassis handles shown in Figure 3-6.

Step 6 Use a Phillips screwdriver to screw in seven to eight M6 x 19-mm or 12-24 x 3/4-inch screws in each of the two chassis vertical mounting brackets (use a total of 12 to 14 screws for each of two mounting brackets) as shown in Figure 3-10.

Figure 3-10 Attaching the Center-Mounted Cisco Nexus 7009 Chassis to the Rack

Prerequisites for Grounding the Chassis

Before you can ground the chassis, you must have a connection to the earth ground for the data center building. If you installed the Cisco Nexus 7009 chassis into a bonded rack (see the rack manufacturer’s instructions for more information) that now has a connection to the data center earth ground, you can ground the chassis by connecting its grounding ports to the rack. Otherwise, you must connect the chassis grounding ports directly to the data center ground.

Required Tools and Equipment

To connect the system ground, you need the following tools and materials:

• Grounding lug—A two-holed standard barrel lug that supports up to 6 AWG wire. This lug is supplied with the Cisco Nexus 7009 system accessory kit.
• Grounding screws—Two M4 x 8 mm (metric) pan-head screws. These screws are shipped with the Cisco Nexus 7009 accessory kit.
• Grounding wire—Not supplied with the Cisco Nexus 7009 system accessory kit. This wire should be sized to meet local and national installation requirements. Depending on the power supply and system, a 12 AWG to 6 AWG copper conductor is required for U.S. installations. We recommend that you use commercially available 6 AWG wire. The length of the grounding wire depends on the proximity of the switch to proper grounding facilities.
• Number 1 Phillips-head screwdriver with torque capability.
• Crimping tool to crimp the grounding wire to the grounding lug.
• Wire-stripping tool to remove the insulation from the grounding wire.

Connecting the System Ground

After you have moved the chassis into the rack or cabinet, you are ready to connect the system to the data center earth ground. After you ground the chassis, you can ground your ESD wrist strap by connecting it to the chassis.

To connect the system ground to the data center earth ground, follow these steps:

Step 1 Use a wire-stripping tool to remove approximately 0.75 inch (19 mm) of the covering from the end of the grounding wire.

Step 2 Insert the stripped end of the grounding wire into the open end of the grounding lug as shown in Figure 3-11.

Figure 3-11 Inserting the Grounding Wire in the Grounding Lug

Step 3 Use the crimping tool to crimp the lug to the grounding wire. Verify that the ground wire is securely attached to the ground lug by attempting to pull the wire out of the crimped lug.

Step 4 Remove the adhesive label from one of the two system grounding pads, and secure the grounding wire lug to the grounding pad with two M4 screws. Figure 3-12 shows the location of the grounding pads on the front side of the chassis. Ensure that the grounding lug and the grounding wire do not interfere with other switch hardware or rack equipment.

Figure 3-12 Grounding Pad on the Front of the Cisco Nexus 7009 Chassis

Prepare the other end of the grounding wire and connect it to an appropriate grounding point in your site to ensure an adequate earth ground for the switch. If the rack is grounded, connect the grounding wire as explained in the documentation provided by the vendor for the rack.

Connecting Your ESD Wrist Strap to the Chassis

After you connect the chassis to the data center earth ground, you can ground your ESD wrist strap by plugging it into an ESD port (shown in Figure 3-13).

Figure 3-13 ESD Grounding Port on the Front of the Cisco Nexus 7009 Chassis