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7-10
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-06
Chapter 7 Managing the Switch Hardware
Power Supply Configuration Modes
Xb3 N7K-C7010-FAB-1 N/A 60 W Powered-Up
Xb4 N7K-C7010-FAB-1 N/A 60 W Powered-Up
Xb5 N7K-C7010-FAB-1 N/A 60 W Powered-Up
fan1 N7K-C7010-FAN-S 76 W 720 W Powered-Up
fan2 N7K-C7010-FAN-S 76 W 720 W Powered-Up
fan3 N7K-C7010-FAN-F 8 W 120 W Powered-Up
fan4 N7K-C7010-FAN-F 8 W 120 W Powered-Up
N/A - Per module power not available
Power Usage Summary:
--------------------
Power Supply redundancy mode (configured) Redundant
Power Supply redundancy mode (operational) Redundant
Total Power Capacity (based on configured mode) 9000 W
Total Power of all Inputs (cumulative) 18000 W
Total Power Output (actual draw) 2243 W
Total Power Allocated (budget) 4750 W
Total Power Available for additional modules 4250 W
switch#
Power Supply Configuration Modes
This section includes the following topics:
• Power Supply Configuration Overview, page 7-10
• Power Supply Configuration Guidelines, page 7-13
Power Supply Configuration Overview
You ca n co nfig u re o ne of t he fol lo w in g pow er m o d es t o eit he r use al l o f th e av ail able pow er prov id ed
by t he in sta ll ed pow er su pply un it s o r to prov id e po wer redu n da nc y wh en t he re is a po we r lo ss:
•
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 y ou to replace a power supply during switch operations.
All power supply units are active. The available power is calculated as the least amount of power
avail able from a ll but on e of the pow er su pply un it s (N+1). The rese rve pow er i s th e a m o un t of
pow er o utput by t h e pow e r supply th at ca n ou tpu t t he m o st po w er. F or e xa m ple, if three pow er
supply u ni ts o u tpu t 3 kW, 6 k W, an d 6 kW, t he av ail able pow er i s 9 k W (3 kW + 6 k W ) an d th e
reserve pow e r is 6 k W.
•
Input so urce red un d an cy m o de—Takes pow e r fro m t wo e lec tric al grid s so t ha t i f on e grid g oe s
dow n , t he ot he r gri d c an prov id e t he pow er n ee de d by t he sw it ch . Ea ch gri d po w ers h alf of each
pow er su pply (grid A is co nn ec ted t o th e I n put 1 recepta cle o n e ach po w er supply an d g rid B i s
conn ec ted t o th e I n put 2 recepta cle o n e ach po w er supply). The av ail able pow er i s th e a m o un t of
power output by the portions of power supply units connected to the same grid. For example, if three
pow er supply un it s are co nn ec ted t o a 110-V grid an d a 220-V grid , ea ch pow e r suppl y ou t puts
1.2 kW f o r th e 110-V grid a nd 3.0 k W for th e 220-V grid. Th e a va il able po w er w ou l d 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 k W).
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