Cisco Nexus 7000 Series Site Preparation Guide - Technical Specifications [Cisco Nexus 7000 Series Switches]

Table Of Contents

Technical Specifications

Environmental Specifications for Cisco Nexus 7000 Series Switches

Physical Specifications for the Cisco Nexus 7000 Series Chassis

Power Specifications for Cisco Nexus 7000 Series Switches

Power Requirements for Switch Components

Power Supply Configuration Modes

Power Supply Cable Specifications

Chassis Clearances

Cisco Nexus 7009 Chassis Clearances

Cisco Nexus 7010 Chassis Clearances

Cisco Nexus 7018 Chassis Clearances

Facility Cooling Requirements

Chassis Airflow

Technical Specifications

This chapter describes the technical specifications for the Cisco Nexus 7000 Series switches and includes these sections:

•Environmental Specifications for Cisco Nexus 7000 Series Switches

•Physical Specifications for the Cisco Nexus 7000 Series Chassis

•Power Specifications for Cisco Nexus 7000 Series Switches

•Power Supply Cable Specifications

•Chassis Clearances

•Facility Cooling Requirements

•Chassis Airflow

Environmental Specifications for Cisco Nexus 7000 Series Switches

Table 3-1 lists the environmental specifications for the Cisco Nexus 7000 Series switches.

Table 3-1 Environmental Specifications for the Cisco Nexus 7000 Series Switches

Description

Cisco Nexus 7009

Cisco Nexus 7010

Cisco Nexus 7018

Temperature

Ambient operating

32 to 104ºF (0 to 40ºC)

Ambient nonoperating

-40 to 158ºF (-40 to 70ºC)

Relative humidity

Ambient (noncondensing) operating

5 to 90% (45 to 50% recommended)

Ambient (noncondensing) nonoperating and storage

5 to 95%

Altitude

Operating

-500 to 13,000 feet (152 to 4,000 meters)

Storage

-1,000 to 30,000 feet (-305 to 9,144 meters)

Noise

Sound pressure levels

Without air filter

63.6 dBA

67.2 dBA

65.0 dBA

With air filter

—

70.2 dBA

—

Sound power levels

Without air filter

72.5 dBA

78.9 dBA

74.2 dBA

With air filter

—

81.7 dBA

—

Physical Specifications for the Cisco Nexus 7000 Series Chassis

Table 3-2 lists the physical specifications for the Cisco Nexus 7000 Series chassis.

Table 3-2 Dimensions for the Cisco Nexus 7000 Series Chassis

Chassis

Width

Depth¹

Height²

Cisco Nexus 7009

17.3 inches (43.9 cm)

24.0 inches (61.0 cm)

24.5 inches (62.2 cm) (14 RU)

Cisco Nexus 7010

17.3 inches (43.9 cm)

32.0 inches (81.3 cm)

36.75 inches (93.3 cm) (21.0 RU)

Cisco Nexus 7018

17.3 inches (43.9 cm)

32.0 inches (81.3 cm)

43.75 inches (111.1 cm) (25.0 RU)

¹This measurement is from the mounting bracket to the rear of the chassis (including the module handles at the rear). For the cable management system on either chassis, add 6.0 inches (15.4 cm) in front of the mounting brackets. The six inches in front of the mounting brackets includes the optional air filter and the optional front door and frame assemblies on the Cisco Nexus 7010 chassis and it includes the optional front door and air intake frame on the Cisco Nexus 7009 and 7018 chassis.

²The height includes the bottom-support bracket for the Cisco Nexus 7010 and 7018. For the Cisco Nexus 7009, you must add 0.75 inches (1.9 cm) for the bottom-support bracket, which can be removed after installation for front-mounted installations.

The weights, quantities, and mean time between failures (MTBF) hours are listed in Table 3-3 for the Cisco Nexus 7009 switch, Table 3-4 for the Cisco Nexus 7010 switch, and Table 3-5 for the Cisco Nexus 7018 switch. The weights in these tables do not include the rack or cabinet that holds the chassis or the interface and power cables. For those weights, see the documentation provided by the manufacturers of those components.

Table 3-3 Weights, Quantities, and MTBF for the Cisco Nexus 7009 Switch Components

Component

Weight per Unit

Quantity

MTBF¹ (Hours) per Unit

Chassis

100 lb (45.0 kg)

1

260,000

Supervisor module (N7K-SUP1)

10 lb (4.5 kg)

2

99,491

48-port 10/100/1000 Ethernet I/O module (N7K-M148GT-11)

14 lb (6.4 kg)

1 to 7 (can mix I/O module types)

75,116

48-port 10/100/1000 Ethernet I/O module (N7K-M148GT-11L)

14 lb (6.4 kg)

73,974

48-port 1-Gigabit Ethernet I/O module (N7K-M148GS-11)

15.5 lb (7.0 kg)

75,064

48-port 1-Gigabit Ethernet I/O module with XL option (N7K-M148GS-11L)

15.5 lb (7.0 kg)

73,228

48-port 1- and 10-Gigabit Ethernet I/O module (N7K-F248XP-25)

14.0 lb (6.4 kg)

83,477

32-port 10-Gigabit Ethernet I/O module (N7K-M132XP-12)

17.0 lb (7.7 kg)

50,081

32-port 10-Gigabit Ethernet I/O module with XL option (N7K-M132XP-12L)

17.0 lb (7.7 kg)

44,253

32-port 1- and 10-Gigabit Ethernet I/O module (N7K-F132XP-15)

14.0 lb (6.4 kg)

90,994

8-port 10-Gigabit Ethernet I/O module with XL option (N7K-M108X2-12L)

14.0 lb (6.4 kg)

52,107

Fabric-2 module (N7K-C7009-FAB-2)

5 lb (2.27 kg)

3 to 5

600,000

Fan tray (N7K-C7009-FAN)

25.0 lb (11.3 kg)

1

433,812

6-kW AC power supply unit (N7K-AC-6.0KW)

18 lb (8.2 kg)

1 or 2 (can mix power supply types)

341,536

7.5-kW AC power supply unit (N7K-AC-7.5KW-INT and N7K-AC-7.5KW-US)

26 lb (11.8 kg)

204,053

6-kW DC power supply unit (N7K-DC-6.0KW)

21 lb (9.5 kg)

200,000

DC Power Interface Unit

5 lb (2.3 kg)

0 to 2

—

Door and air frame (optional)

—

0 or 1

—

¹The predicted mean time between failure (MTBF) is based on the Bellcore Methodology.

Table 3-4 Weights, Quantities, and MTBF for the Cisco Nexus 7010 Switch Components

Component

Weight per Unit

Quantity

MTBF¹ (Hours) per Unit

Chassis

200 lb (90.9 kg)

1

264,649

Supervisor module (N7K-SUP1)

10 lb (4.5 kg)

2

99,491

48-port 10/100/1000 Ethernet I/O module (N7K-M148GT-11)

14 lb (6.4 kg)

1 to 8 (can mix I/O module types)

75,116

48-port 10/100/1000 Ethernet I/O module (N7K-M148GT-11L)

14 lb (6.4 kg)

73,974

48-port 1-Gigabit Ethernet I/O module (N7K-M148GS-11)

15.5 lb (7.0 kg)

75,064

48-port 1-Gigabit Ethernet I/O module with XL option (N7K-M148GS-11L)

15.5 lb (7.0 kg)

73,228

48-port 1- and 10-Gigabit Ethernet I/O module (N7K-F248XP-25)

14.0 lb (6.4 kg)

83,477

32-port 10-Gigabit Ethernet I/O module (N7K-M132XP-12)

17.0 lb (7.7 kg)

50,081

32-port 10-Gigabit Ethernet I/O module with XL option (N7K-M132XP-12L)

17.0 lb (7.7 kg)

44,253

32-port 1- and 10-Gigabit Ethernet I/O module (N7K-F132XP-15)

14.0 lb (6.4 kg)

90,994

8-port 10-Gigabit Ethernet I/O module with XL option (N7K-M108X2-12L)

14.0 lb (6.4 kg)

52,107

Fabric-1 module (N7K-C7010-FAB-1)

4 lb (1.8 kg)

Up to 5

651,072

Fabric-2 module (N7K-C7010-FAB-2)

4 lb (1.8 kg)

402,665

System fan tray (N7K-C7010-FAN-S)

20 lb (9.1 kg)

2

433,812

Fabric fan tray (N7K-C7010-FAN-F)

5 lb (2.3 kg)

2

1,677,631

6-kW AC power supply unit (N7K-AC-6.0KW)

18 lb (8.2 kg)

2 to 3 (can mix power supply types)

341,536

7.5-kW AC power supply unit (N7K-AC-7.5KW-INT and N7K-AC-7.5KW-US)

26 lb (11.8 kg)

204,053

6-kW DC power supply unit (N7K-DC-6.0KW)

21 lb (9.5 kg)

200,000

DC Power Interface Unit

5 lb (2.3 kg)

0 to 2

—

Mid-frame doors and frame (optional)

—

0 or 1

—

¹The predicted mean time between failure (MTBF) is based on the Bellcore Methodology.

Table 3-5 Weights, Quantities, and MTBF for the Cisco Nexus 7018 Switch Components

Component

Weight per Unit

Quantity

MTBF¹ (Hours) per Unit

Chassis

187 lb (85.0 kg)

1

206,038

Supervisor module (N7K-SUP1)

10 lb (4.5 kg)

2

99,491

48-port 10/100/1000 Ethernet I/O module (N7K-M148GT-11)

14 lb (6.4 kg)

1 to 16 (can mix I/O module types)

75,116

48-port 10/100/1000 Ethernet I/O module (N7K-M148GT-11L)

14 lb (6.4 kg)

73,974

48-port 1-Gigabit Ethernet I/O module (N7K-M148GS-11)

15.5 lb (7.0 kg)

75,064

48-port 1-Gigabit Ethernet I/O module with XL option (N7K-M148GS-11L)

15.5 lb (7.0 kg)

73,228

48-port 1- and 10-Gigabit Ethernet I/O module (N7K-F248XP-25)

14.0 lb (6.4 kg)

83,477

32-port 10-Gigabit Ethernet I/O module (N7K-M132XP-12)

17.0 lb (7.7 kg)

50,081

32-port 10-Gigabit Ethernet I/O module with XL option (N7K-M132XP-12L)

17.0 lb (7.7 kg)

44,253

32-port 1- and 10-Gigabit Ethernet I/O module (N7K-F132XP-15)

14.0 lb (6.4 kg)

90,994

8-port 10-Gigabit Ethernet I/O module with XL option (N7K-M108X2-12L)

14 lb (6.4 kg)

52,107

Fabric-1 module (N7K-C7018-FAB-1)

7.5 lb (3.4 kg)

Up to 5

423,846

Fabric-2 module (N7K-C7018-FAB-2)

7.5 lb (3.4 kg)

296,947

Fan tray (N7K-C7018-FAN)

25.8 lb (11.7 kg)

2

276,352

6-kW AC power supply unit (N7K-AC-6.0KW)

18 lb (8.2 kg)

2 to 4 (can mix power supply types)

341,536

7.5-kW AC power supply unit (N7K-AC-7.5KW-INT and (N7K-AC-7.5KW-US)

26 lb (11.8 kg)

204,053

6-kW DC power supply unit (N7K-DC-6.0KW)

21 lb (9.5 kg)

200,000

DC Power Interface Unit

5 lb (2.3 kg)

0 to 2

—

Front door (optional)

25 lb (11.3 kg)

0 or 1

—

¹The predicted mean time between failure (MTBF) is based on the Bellcore Methodology.

Power Specifications for Cisco Nexus 7000 Series Switches

The number of power supplies that a Cisco Nexus 7000 Series switch requires depends on the quantities and types of modules that you include in the switch chassis, the type of power supply units that you are using, and the power redundancy mode that you are using.

The following topics explain how to calculate the switch power requirements and the amount of power available for each type of power supply configuration mode:

•Power Requirements for Switch Components

•Power Supply Configuration Modes

Power Requirements for Switch Components

To determine the power requirements of the Cisco Nexus 7000 Series switches, add the power requirements of each of its components. For each component, multiply the number of its modules by its maximum or typical power requirement. To find the quantities and power requirements for each Cisco Nexus 7000 Series switch, see Table 3-6 for the Cisco Nexus 7009 switch, see Table 3-7 for the Cisco Nexus 7010 switch, and see Table 3-8 for the Cisco Nexus 7018 switch.

Table 3-6 Power Requirements for the Cisco Nexus 7009 Switch

Component

Quantity

Maximum

Typical

Supervisor module

2

210 W

190 W

48-port 10/100/1000 Ethernet I/O module

1 to 7

400 W

358 W

48-port 10/100/1000 Ethernet I/O module with XL option

400 W

358 W

48-port 1-Gigabit Ethernet I/O module

400 W

358 W

48-port 1-Gigabit Ethernet I/O module with XL option

400 W

358 W

48-port 1- and 10-Gigabit Ethernet I/O module

450 W

400 W

32-port 10-Gigabit Ethernet I/O module

750 W

611 W

32-port 10-Gigabit Ethernet I/O module with XL option

750 W

611 W

32-port 1- and 10-Gigabit Ethernet I/O module

385 W

283 W

8-port 10-Gigabit Ethernet I/O module with XL option

650 W

520 W

Fabric-2 module

3 to 5

70 W

55 W

All fan trays (total)

—

650 W

190 W

Table 3-7 Power Requirements for the Cisco Nexus 7010 Switch

Component

Quantity

Maximum

Typical

Supervisor module

2

210 W

190 W

48-port 10/100/1000 Ethernet I/O module

1 to 8

400 W

358 W

48-port 10/100/1000 Ethernet I/O module with XL option

400 W

358 W

48-port 1-Gigabit Ethernet I/O module

400 W

358 W

48-port 1-Gigabit Ethernet I/O module with XL option

400 W

358 W

48-port 1- and 10-Gigabit Ethernet I/O module

450 W

400 W

32-port 10-Gigabit Ethernet I/O module

750 W

611 W

32-port 10-Gigabit Ethernet I/O module with XL option

750 W

611 W

32-port 1- and 10-Gigabit Ethernet I/O module

385 W

283 W

8-port 10-Gigabit Ethernet I/O module with XL option

650 W

520 W

Fabric-1 module

3 to 5

60 W

55 W

Fabric-2 module

80 W

60W

All fan trays (total)

—

2184 W

300 W

Table 3-8 Power Requirements for the Cisco Nexus 7018 Switch

Component

Quantity

Maximum

Typical

Supervisor module

2

210 W

190 W

48-port 10/100/1000 Ethernet I/O module

1 to 16

400 W

358 W

48-port 10/100/1000 Ethernet I/O module with XL option

400 W

358 W

48-port 1-Gigabit Ethernet I/O module

400 W

358 W

48-port 1-Gigabit Ethernet I/O module with XL option

400 W

358 W

48-port 1- and 10-Gigabit Ethernet I/O module

450 W

400 W

32-port 10-Gigabit Ethernet I/O module

750 W

611 W

32-port 10-Gigabit Ethernet I/O module with XL option

750 W

611 W

32-port 1- and 10-Gigabit Ethernet I/O module

385 W

283 W

8-port 10-Gigabit Ethernet I/O module with XL option

650 W

520 W

Fabric-1 module

3 to 5

100 W

90 W

Fabric-2 module

150 W

110 W

All fan trays (total)

—

1433 W

569 W

Power Supply Configuration Modes

You can configure one of the following power modes to either use the combined power provided by the installed power supply units or to provide power redundancy when there is a power loss:

•Combined mode—Provides the maximum amount of available power by utilizing the combined power output from all installed power supply units for switch operations. This mode does not provide redundancy.

•Power-supply redundancy mode—Allows you to replace a power supply during switch operations. All power supplies are active. The available power is calculated as the least amount of power available from all but one of the power supply units (N+1). The reserve power is the amount of power output by the power supply unit that can output the most power. For example, if three power supply units output 3 kW, 6 kW, and 6 kW, the available power is 9 kW (3 kW + 6 kW) and the reserve power is 6 kW.

•Input source redundancy mode—Takes power from two electrical grids so that if one grid goes down, the other grid can provide the power needed by the switch. Each grid powers half of each power supply unit (grid A is connected to the Input 1 receptacle on each power supply unit and grid B is connected to the Input 2 receptacle on each power supply unit). The available power is the amount of power output by the portions of the power supply units that are connected to the same grid. For example, if three power supply units are connected to a 110-V grid and a 220-V grid, each power supply outputs 1.2 kW for the 110-V grid and 3.0 kW for the 220-V grid. The available power would be 3.6 kW (1.2 kW + 1.2 kW + 1.2 kW) and the reserve power would be 9.0 kW (3.0 kW + 3.0 kW + 3.0 kW).

•Full redundancy mode—Provides both power-supply redundancy and input-source redundancy. This mode allows you to replace a power supply unit without interrupting switch operations or continue powering the switch if one of two grids goes down. The available power is the lesser amount of output power for power supply redundancy or input source redundancy.

The amount of power available for use with your Cisco Nexus 7000 Series switch depends on the number of power supply units, input voltage used, and the power mode used. To determine the amount of available power for 6-kW AC power supply units, see Table 3-9. To determine the amount of power available for 7.5-kW AC power supply units, see Table 3-10. To determine the amount of power available for the 6-kW DC power supply units, see Table 3-11.

Table 3-9 Power Availability for 6-kW AC Power Supply Units

Power Inputs

Combined Mode

Power Supply Redundancy Mode

Input Source Redundancy Mode

Full Redundancy Mode

Dual inputs per power supply unit

220-V and 220-V inputs

1 power supply unit

6000 W

—

3000 W

—

2 power supply units

12,000 W

6000 W

6000 W

6000 W

3 power supply units

18,000 W

12,000 W

9000 W

9000 W

4 power supply units¹

24,000 W

18,000 W

12,000 W

12,000 W

220-V and 110-V inputs

1 power supply unit

4200 W

—

1200 W

—

2 power supply units

8400 W

4200 W

2400 W

2400 W

3 power supply units

12,600 W

8400 W

3600 W

3600 W

4 power supply units¹

16,800 W

12,600 W

4800 S

4800 W

110-V and 110-V inputs

1 power supply unit

2400 W

—

1200 W

—

2 power supply units

4800 W

2400 W

2400 W

2400 W

3 power supply units

7200 W

4800 W

3600 W

3600 W

4 power supply units¹

9600 W

7200 W

4800 W

4800 W

Single input per power supply unit

220-V input

1 power supply unit

3000 W

—

—

—

2 power supply units

6000 W

3000 W

—

—

3 power supply units

9000 W

6000 W

—

—

4 power supply units¹

12,000 W

9000 W

—

—

110-V input

1 power supply unit

1200 W

—

—

—

2 power supply units

2400 W

1200 W

—

—

3 power supply units

3600 W

2400 W

—

—

4 power supply units¹

4800 W

3600 W

—

—

¹A fourth power supply unit can be added to only the Cisco Nexus 7018 switch. The Cisco Nexus 7010 holds up to three power supply units.

Table 3-10 Power Availability for 7.5-kW AC Power Supply Units

Power Inputs

Combined
Mode

Power
Supply
Redundancy
Mode

Input Source
Redundancy
Mode

Full
Redundancy
Mode

Dual inputs per power supply unit

220-V and 220-V inputs

1 power supply unit

7500 W

—

3750 W

—

2 power supply units

15,000 W

7500 W

7500 W

7500 W

3 power supply units

22,500 W

15,000 W

11,250 W

11,250 W

4 power supply units^¹

30,000 W

22,500 W

15,000 W

15,000 W

Single input per power supply unit

220-V input

1 power supply unit

3750 W

—

—

—

2 power supply units

7500 W

3750 W

—

—

3 power supply units

11,250 W

7500 W

—

—

4 power supply units¹

15,000 W

11,250 W

—

—

¹A fourth power supply unit can be added to only the Cisco Nexus 7018 switch. The Cisco Nexus 7010 holds up to three power supply units.

Table 3-11 Power Availability for 6.0-kW DC Power Supply Units

Power Inputs

Combined
Mode

Power
Supply
Redundancy
Mode

Input Source
Redundancy
Mode

Full
Redundancy
Mode

Dual inputs per power supply unit

1 power supply unit

2 power supply unit

3 power supply unit

4 power supply unit¹

6,000 W

12,000 W

18,000 W

24,000 W

—

6,000 W

12,000 W

18,000 W

3,000 W

6,000 W

9,000 W

12,000 W

—

6,000 W

9,000 W

12,000 W

Single input per power supply unit

1 power supply unit

2 power supply unit

3 power supply unit

4 power supply unit¹

3,000 W

6,000 W

9,000 W

12,000 W

—

3,000 W

6,000 W

9,000 W

—

—

9,000 W

12,000 W

—

—

6,000 W

9,000 W

¹A fourth power supply unit can be added to only the Cisco Nexus 7018 switch. The Cisco Nexus 7010 holds up to three power supply units.

Power Supply Cable Specifications

For specifications of the AC power cables that you can connect to a 6-kW AC power supply unit, see Table 3-12. For specifications of the AC power cord connectors attached to the 7.5-kW AC power supply units, see Table 3-13. For specifications of the DC power cord used with the 6-kW DC power supply units, see Table 3-14.

Table 3-12 6-kW AC Power Supply Power Cords

Locale

Power Cord Part Number

Cord Set Rating

Power Cord Reference Illustration

Australia and New Zealand

CAB-AC-16A-AUS

16A, 250 VAC

Figure 3-1

Peoples Republic of China

CAB-AC-16A-CH

16A, 250 VAC

Figure 3-2

Continental Europe

CAB-AC-2500W-EU

16A, 250 VAC

Figure 3-3

International

CAB-AC-2500W-INT

16A, 250 VAC

Figure 3-4

Israel

CAB-AC-2500W-ISRL

16A, 250 VAC

Figure 3-5

Japan and North America (nonlocking) 200 to 240 VAC operation

CAB-AC-2500W-US1

16A, 250 VAC

Figure 3-6

Japan and North America (locking) 200 to 240 VAC operation

CAB-AC-C6K-TWLK

16A, 250 VAC

Figure 3-7

Japan and North America
100 to 120 VAC operation

CAB-7513AC

16A, 250 VAC

Figure 3-8

North America
125 VAC operation

CAB-L520P

16A, 250 VAC

Figure 3-9

Power distribution unit (PDU)

CAB-C19-CBN

16A, 250 VAC

Figure 3-10

Switzerland

CAB-ACS-16

16A, 250 VAC

Figure 3-11

Figure 3-1 CAB-AC-16A-AUS Power Cord and Connectors for the 6-kW Power Supply

Figure 3-2 CAB-AC-16A-CH Power Cord and Connectors for the 6-kW Power Supply

Figure 3-3 CAB-AC-2500W-EU Power Cord and Connectors for the 6-kW Power Supply

Figure 3-4 CAB-AC-2500W-INT Power Cord and Connectors for the 6-kW Power Supply

Figure 3-5 CAB-AC-2500W-ISRL Power Cord and Connectors for the 6-kW Power Supply

Figure 3-6 CAB-AC-2500W-US1 Power Cord and Connectors for the 6-kW Power Supply

Figure 3-7 CAB-AC-C6K-TWLK Power Cord and Connectors for the 6-kW Power Supply

Figure 3-8 CAB-7513AC Power Cord and Connectors for the 6-kW Power Supply

Figure 3-9 CAB-L520P-C19-US Power Cord and Connectors for the 6-kW Power Supply

Figure 3-10 CAB-C19-CBN Power Cord and Connectors for the 6-kW Power Supply

Figure 3-11 CAB-ACS-16 Power Cord and Connectors for the 6-kW Power Supply

Table 3-13 7.5-kW AC Power Supply Power Cords

Locale

Cord rating

Power cord reference illustration

Japan and North America

30 A, 250 VAC

Figure 3-12

International

32 A, 250 VAC

Figure 3-13

Figure 3-12 NEMA L6-30 Power Connector for the 7.5-kW Power Supply

Figure 3-13 IEC 603090 Power Connector for the 7.5-kW Power Supply

Table 3-14 6-kW DC Power Supply Power Cord

Locale

Power Cord Part Number

Cord Rating

All

N7K-DC-CAB

40 A, 48V-48V

Figure 3-14 Power Connector for the 6.0-kW DC Power Supply Unit

Chassis Clearances

You must provide each Cisco Nexus 7000 Series switch with adequate clearance for installation, maintenance, cabling, and airflow. Installation clearance includes the cold aisle spacing required in front of the rack or cabinet to allow you to move the switch with a mechanical lift to its rack or cabinet. Maintenance clearance is the hot or cold aisle spacing required to replace supervisor, I/O, fabric, fan, and power supply modules. Cabling clearance provides the required space in front of the chassis (often within a cabinet) for cables to bend and connect to the chassis. Airflow clearance is typically the spacing on the left or right of the chassis for side-to-side airflow into and out of the chassis. If a chassis has front-to-back airflow, it uses the maintenance clearance for airflow instead of airflow clearance on the sides of the chassis.

This section includes the following topics:

•Cisco Nexus 7009 Chassis Clearances

•Cisco Nexus 7010 Chassis Clearances

•Cisco Nexus 7018 Chassis Clearances

Cisco Nexus 7009 Chassis Clearances

The Cisco Nexus 7009 chassis has different clearance requirements for installations with four-post racks or cabinets, two-post racks with front-mount brackets, and two-post racks with center-mount brackets.

For four-post rack or cabinet installations, the chassis requires the following clearances (see Figure 3-15):

•Front clearance requires both of the following:

–Cabling area of 7 inches (17.8 cm) between the front of the chassis and the inside surface of the cabinet or rack (this area can include the optional cable management frames)

–Maintenance area of 24 inches (61.1 cm) between the front of the rack or cabinet and the next object in the cold aisle.

Note You might need to increase the maintenance area to accommodate a wide mechanical lift used to move the chassis to or from the rack.

•Rear clearance includes both of the following:

–Cabling area of 7 inches (17.8 cm) between the rear of the chassis and the inside surface of the cabinet or rack

–Maintenance area of 24 inches (61.1 cm) between the rear of the rack or cabinet and the next object in the hot aisle

•Side clearance of 11 inches (27.9 cm) for air flow on each side of the chassis.

Figure 3-15 Clearances Required for a Cisco Nexus 7009 Chassis in a Four-Post Rack

1

Cisco Nexus 7009 chassis

7

Exhaust airflow from power supply units to hot aisle

2

Mounting posts in a four-post cabinet

8

Front cabling area

3

Cable management area (cable management frames are optional)

9

Front maintenance area (additional area might be needed for mechanical lifts used to move the chassis to or from the rack)

4

Coolant airflow from cold aisle to power supply units

10

Rear cabling area

5

Coolant airflow from cold aisle to the modules in the chassis

11

Rear maintenance area

6

Exhaust airflow from the modules in the chassis to hot aisle

12

Side airflow area

For two-post rack installations with front-mount brackets, the chassis requires the following clearances (see Figure 3-16):

•Front clearance requires both of the following:

–Cabling area of 6 inches (15.2 cm) between the front of the chassis and the cold aisle (this area can include the optional cable management frames)

–Maintenance area of 24 inches (61.1 cm) in front of the cabling area for installing the chassis and replacing modules

Note You might need to increase the maintenance area to accommodate a wide mechanical lift used to move the chassis to or from the rack.

•Rear clearance requires 26 inches (66.0 cm) behind the chassis for cable management and for replacing modules and power supplies

•Side clearance of 11 inches (27.9 cm) for airflow on each side of the chassis

Figure 3-16 Clearance Requirements for a Cisco Nexus 7009 Switch in a Two-Post Rack with a Front-Mount Bracket

1

Cisco Nexus 7009 chassis

7

Exhaust airflow from power supply units to warm aisle

2

Posts for a two post rack with center mount brackets (front of chassis is set 6 inches (15.2 cm) in front of the posts)

8

Front cabling area

3

Cable management area (cable management frames are optional)

9

Front maintenance area (additional space might be required for using a mechanical lift to move the chassis to or from the rack or cabinet)

4

Coolant airflow from cold aisle to power supply units

10

Rear maintenance area

5

Coolant airflow from cold aisle to chassis

11

Side airflow area

6

Exhaust airflow from chassis to warm aisle

For two-post rack installations with center-mount brackets, the chassis requires the following clearances (see Figure 3-17):

•Front clearance of 37 inches (94.0 cm) for both of the following:

–Cabling area of 13 inches (33.0 cm) between the front of the posts (posts are 6 inches (15.2 cm) behind the front of the chassis)

–Maintenance area of 24 inches (61.1 cm) in front of the cabling area for installing the chassis and replacing modules.

Note You might need to increase the maintenance area to accommodate a wide mechanical lift used to move the chassis to or from the rack.

•Rear clearance of 26 inches (66.0 cm) behind the chassis for cable management and for replacing the fan modules and power supplies.

•Side clearance of 11 inches (27.9 cm) for airflow on each side of the chassis.

Figure 3-17 Clearance Requirements for a Cisco Nexus 7009 Switch in a Two-Post Rack with a Center-Mount Bracket

1

Cisco Nexus 7009 chassis

7

Exhaust airflow from power supply units to hot aisle

2

Mounting posts in a two-post cabinet with a center-mount bracket (located 6 inches [15.2 cm] from the front of the chassis)

8

Front cabling area

3

Cable management area (cable management frames are optional

9

Front maintenance area (increase as needed for larger mechanical lifts used to move the chassis)

4

Coolant airflow from cold aisle to power supply units

10

Rear maintenance area

5

Coolant airflow from cold aisle to modules inside the chassis

11

Side airflow area

6

Exhaust airflow from modules inside the chassis to the hot aisle

Cisco Nexus 7010 Chassis Clearances

The Cisco Nexus 7010 chassis requires the following clearances (see Figure 3-18):

•Front clearance of 45 inches (114.3 cm) for both of the following:

–Cabling area of 7 inches (17.8 cm) between the front of the chassis and the inside of the cabinet or front of the rack

–Maintenance area of 38 inches (96.5 cm) of cold-aisle passageway in front of the rack or cabinet

Note You might need to increase the maintenance area to accommodate a wide mechanical lift used to move the chassis to or from the rack.

•Rear clearance of 37 inches (94.0 cm) for both of the following:

–Cabling area of 7 inches (17.8 cm) inside of the cabinet or rack

–Maintenance area of 30 inches (76.2 cm) of hot-aisle passageway behind the rack or cabinet

Figure 3-18 Clearances Required for the Cisco Nexus 7010 Switch

1

Cisco Nexus 7010 chassis

6

No side clearance required for this chassis

2

Cable management area (6 inch [15.2 cm] deep cable management frames are optional)

7

Front clearance to the cool aisle or to the interior of an enclosed rack for this chassis

3

Coolant airflow from the cold aisle to power supply units and chassis

8

Front clearance in the cool aisle required for installing the chassis (additional clearance might be required by mechanical lifts used to move the chassis) or replacing modules

4

Exhaust airflow from power supply units and chassis to the warm aisle

9

Rear clearance in the warm aisle required for replacing modules

5

Rear clearance to the warm aisle for an open rack or to the interior of an enclosed rack for this chassis

Cisco Nexus 7018 Chassis Clearances

The Cisco Nexus 7018 chassis requires the following clearances (see Figure 3-19):

•Front clearance of 45 inches (114.3 cm) for both of the following:

–Cabling area of 7 inches (17.8 cm) between the front of the chassis and the inside of the cabinet or front of the rack

–Maintenance area of 38 inches (96.5 cm) between the front of the rack or cabinet and the next rack, cabinet, or wall in the cold aisle (additional area might be needed for a larger mechanical lift used to move the chassis)

•Rear clearance of 37 inches (94,0 cm) for both of the following:

–Cabling area of 7 inches (17.8 cm) inside the cabinet or rack with doors or can be combined with the maintenance area if using a rack without doors

–Maintenance area of 30 inches (76.2 cm) of hot-aisle passageway behind the rack or cabinet

•Side clearance of 11 inches (27.9 cm) for airflow on each side of the chassis

Figure 3-19 Clearances Required for the Cisco Nexus 7018 Switch

1

Cisco Nexus 7018 chassis

7

Exhaust airflow from power supply units to hot aisle

2

Post in a four-post rack

8

Front cabling area

3

Cable management area (cable management frames are optional)

9

Front maintenance area

4

Coolant airflow from cold aisle to power supply units

10

Rear cabling area

5

Coolant airflow from cold aisle to chassis

11

Rear maintenance area

6

Exhaust airflow from chassis to hot aisle

12

Side clearance area

Facility Cooling Requirements

The Cisco Nexus 7000 Series switches dissipate considerable power that generates much heat. The following is the heat dissipation requirement for these switches:

•Cisco Nexus 7009 dissipates up to 28,101 BTUs per hour

•Cisco Nexus 7010 dissipates up to 35,162 BTUs per hour

•Cisco Nexus 7018 dissipates up to 51,195 BTUs per hour

Chassis Airflow

To see how the cooling air flows through the Cisco Nexus 7000 Series switches, see Figure 3-20 for the Cisco Nexus 7009 switch, Figure 3-21 for the Cisco Nexus 7010 switch, and Figure 3-22 for the Cisco Nexus 7018 switch. All of the Cisco Nexus 7000 Series switches are designed to work in a hot-aisle/cold-aisle environment, but the Cisco Nexus 7009 and 7018 switches also require side clearances to allow airflow in and out the sides.

Figure 3-20 Airflow for the Cisco Nexus 7009 Chassis

1

Airflow for cooling the supervisor, I/O modules, and fabric modules

2

Airflow for cooling the power supply units

Figure 3-21 Airflow for the Cisco Nexus 7010 Chassis

1

Airflow for cooling the supervisor and I/O modules

3

Airflow for cooling the power supply units

2

Airflow for cooling the fabric modules

Figure 3-22 Airflow for the Cisco Nexus 7018 Chassis

1

Airflow for cooling the supervisor and I/O modules

3

Airflow for cooling the power supply units

2

Airflow for cooling the fabric modules

To allow for the Cisco Nexus 7009 and 7018 switches to take in air from the cold aisle and floor on the right side, you should route cables on the left front side of the switch. If necessary, you can route cables on the upper right front side of the chassis, which leaves the lower right side open to cooling air from the cold aisle in front of the chassis. By having the cables on the left side and leaving the left rear side unobstructed, the exhaust is directed to the hot aisle in back.

For the clearances required on each side of the switch, see the "Chassis Clearances" section.

To determine the clearances required on each side of the switch, see the "Chassis Clearances" section.

To determine the maximum amount of airflow for a fully configured switch, see Table 3-16 for the Cisco Nexus 7010 switch or see Table 3-17 for the Cisco Nexus 7018 switch.

Note Systems with fewer than the maximum number of supervisor, I/O, or fabric modules will have less airflow.

Table 3-15 Airflow for a Fully Configured Cisco Nexus 7009 Switch

Temperature

System Airflow (cfm)

Fabric Airflow (cfm)

Total Airflow (cfm)

<55ºF (13ºC)

686

76

762

55 to 62ºF (13 to 17ºC)

686

92

778

64 to 71ºF (18 to 22ºC)

686

107

793

73 to 80ºF (23 to 27ºC)

686

123

809

82 to 89ºF (28 to 32ºC)

686

143

829

91 to 98ºF (33 to 37ºC)

768

153

921

100 to 107ºF (38 to 42ºC)

842

173

1015

109 to 116ºF (43 to 47ºC)

1044

189

1233

118 to 125ºF (48 to 52ºC)

1203

203

1406

127 to 136ºF (53 to 58ºC)

1326

221

1547

>136ºF (>58ºC)

1203

250

1576

Table 3-16 Airflow for a Fully Configured Cisco Nexus 7010 Switch

Temperature

System Airflow (cfm)

Fabric Airflow (cfm)

Total Airflow (cfm)

<55ºF (13ºC)

406

37

443

55 to 62ºF (13 to 17ºC)

493

44

537

64 to 71ºF (18 to 22ºC)

534

50

584

73 to 80ºF (23 to 27ºC)

576

56

632

82 to 89ºF (28 to 32ºC)

659

63

722

91 to 98ºF (33 to 37ºC)

744

70

814

100 to 107ºF (38 to 42ºC)

853

75

928

109 to 116ºF (43 to 47ºC)

1044

100

1144

118 to 125ºF (48 to 52ºC)

1242

154

1396

127 to 136ºF (53 to 58ºC)

1447

162

1609

>136ºF (>58ºC)

1447

162

1609

Table 3-17 Airflow for a Fully Configured Cisco Nexus 7018 Switch

Temperature

System Airflow (cfm)

Fabric Airflow (cfm)

Total Airflow (cfm)

<55ºF (13ºC)

1459

71

1530

55 to 62ºF (13 to 17ºC)

1459

83

1542

64 to 71ºF (18 to 22ºC)

1459

89

1548

73 to 80ºF (23 to 27ºC)

1459

95

1554

82 to 89ºF (28 to 32ºC)

1459

124

1583

91 to 98ºF (33 to 37ºC)

1583

153

1736

100 to 107ºF (38 to 42ºC)

1713

180

1893

109 to 116ºF (43 to 47ºC)

2158

195

2353

118 to 125ºF (48 to 52ºC)

2461

207

2668

127 to 136ºF (53 to 58ºC)

2770

207

2977

>136ºF (58ºC)

2770

207

2977