Power Supply Configuration Modes; Power Supply Configuration Overview - Cisco Nexus 7000 Series Hardware Installation And Reference Manual

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Power Supply Configuration Modes

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
Xb3
Xb4
Xb5
fan1
fan2
fan3
fan4
N/A - Per module power not available
Power Usage Summary:
--------------------
Power Supply redundancy mode (configured)
Power Supply redundancy mode (operational)
Total Power Capacity (based on configured mode)
Total Power of all Inputs (cumulative)
Total Power Output (actual draw)
Total Power Allocated (budget)
Total Power Available for additional modules
switch#
Power Supply Configuration Modes
This section includes the following topics:

Power Supply Configuration Overview

Y o u c a n c o n f i g u r e o n e o f t h e f o l l o w i n g p o w e r m o d e s t o e i t h e r u s e a l l o f t h e a v a i l a b l e p o w e r p r o v i d e d
b y t h e i n s t a l l e d p o w e r s u p p l y u n i t s o r t o p r o v i d e p o w e r r e d u n d a n c y w h e n t h e r e i s a p o w e r l o s s :
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
7-10
N7K-C7010-FAB-1
N7K-C7010-FAB-1
N7K-C7010-FAB-1
N7K-C7010-FAN-S
N7K-C7010-FAN-S
N7K-C7010-FAN-F
N7K-C7010-FAN-F
Power Supply Configuration Overview, page 7-10
Power Supply Configuration Guidelines, page 7-13
C o m b i n e d m o d e — P r o v i d e s t h e m a x i m u m a m o u n t o f a v a i l a b l e p o w e r b y u t i l i z i n g t h e c o m b i n e d
p o w e r o u t p u t f r o m a l l i n s t a l l e d p o w e r s u p p l y u n i t s f o r s w i t c h o p e r a t i o n s . T h i s m o d e d o e s n o t
p r o v i d e r e d u n d a n c y .
P o w e r - s u p p l y r e d u n d a n c y m o d e — A l l o w s y o u t o r e p l a c e a p o w e r s u p p l y d u r i n g s w i t c h o p e r a t i o n s .
A l l p o w e r s u p p l y u n i t s a r e a c t i v e . T h e a v a i l a b l e p o w e r i s c a l c u l a t e d a s t h e l e a s t a m o u n t o f p o w e r
a v a i l a b l e f r o m a l l b u t o n e o f t h e p o w e r s u p p l y u n i t s ( N + 1 ) . T h e r e s e r v e p o w e r i s t h e a m o u n t o f
p o w e r o u t p u t b y t h e p o w e r s u p p l y t h a t c a n o u t p u t t h e m o s t p o w e r . F o r e x a m p l e , i f t h r e e p o w e r
s u p p l y u n i t s o u t p u t 3 k W , 6 k W , a n d 6 k W , t h e a v a i l a b l e p o w e r i s 9 k W ( 3 k W + 6 k W ) a n d t h e
r e s e r v e p o w e r i s 6 k W .
I n p u t s o u r c e r e d u n d a n c y m o d e — T a k e s p o w e r f r o m t w o e l e c t r i c a l g r i d s s o t h a t i f o n e g r i d g o e s
d o w n , t h e o t h e r g r i d c a n p r o v i d e t h e p o w e r n e e d e d b y t h e s w i t c h . E a c h g r i d p o w e r s h a l f o f e a c h
p o w e r s u p p l y ( g r i d A i s c o n n e c t e d t o t h e I n p u t 1 r e c e p t a c l e o n e a c h p o w e r s u p p l y a n d g r i d B i s
c o n n e c t e d t o t h e I n p u t 2 r e c e p t a c l e o n e a c h p o w e r s u p p l y ) . T h e a v a i l a b l e p o w e r i s t h e a m o u n t o f
p o w e r o u t p u t b y t h e p o r t i o n s o f p o w e r s u p p l y u n i t s c o n n e c t e d t o t h e s a m e g r i d . F o r e x a m p l e , i f t h r e e
p o w e r s u p p l y u n i t s a r e c o n n e c t e d t o a 1 1 0 - V g r i d a n d a 2 2 0 - V g r i d , e a c h p o w e r s u p p l y o u t p u t s
1 . 2 k W f o r t h e 1 1 0 - V g r i d a n d 3 . 0 k W f o r t h e 2 2 0 - V g r i d . T h e a v a i l a b l e p o w e r w o u l d b e 3 . 6 k W
( 1 . 2 k W + 1 . 2 k W + 1 . 2 k W ) a n d t h e r e s e r v e p o w e r w o u l d b e 9 . 0 k W ( 3 . 0 k W + 3 . 0 k W + 3 . 0 k W ) .
Chapter 7
N/A
60 W
Powered-Up
N/A
60 W
Powered-Up
N/A
60 W
Powered-Up
76 W
720 W
Powered-Up
76 W
720 W
Powered-Up
8 W
120 W
Powered-Up
8 W
120 W
Powered-Up
Redundant
Redundant
Managing the Switch Hardware
9000 W
18000 W
2243 W
4750 W
4250 W
OL-23069-06

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