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6-9
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-18634-01
Chapter 6 Managing the Device Hardware
Power Supply Configuration Modes
• Full redundancy mode—Provides both power-supply redundancy and input-source redundancy.
This mode lets you replace a power supply without interrupting system operations or continue
powering the device 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.
To determine the amount of available power for 6-kW power supply units in each power mode, see
Table 6-1. To determine the amount of available power for 7.5-kW power supply units, see Table 6-2.
Table 6-1 Power Availability for 6-kW Power Supply Units
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 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
220-V and 110-V inputs
1 power supply 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
110-V and 110-V inputs
1 power supply 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
Single inputs per power supply unit
220-V input
1 power supply 3000 W — — —
2 power supply units 6000 W 3000 W — —
3 power supply units 9000 W 6000 W — —
110-V input
1 power supply 1200 W — — —
2 power supply units 2400 W 1200 W — —
3 power supply units 3600 W 2400 W — —
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