Chapter 6 Managing the Device Hardware

Information About Fan Trays

Se n d d o c u m e n t c o m m e n t s t o n ex u s 7 k - d o c f e e d b a ck @ c i s c o . c o m

DETAILED STEPS

 

Command

Purpose

Step 1

 

 

config t

Enters configuration mode.

 

Example:

 

 

switch# config t

 

 

switch(config)#

 

Step 2

 

 

poweroff module slot_number

Powers off the specified module (fabric module 1) in the

 

Example:

device.

 

 

 

switch(config)# poweroff module 1

 

 

switch(config)#

 

 

 

 

 

no poweroff module slot_number

Powers up the specified module (fabric module 1) in the

 

Example:

device.

 

 

 

switch(config)# no poweroff module 1

 

 

switch(config)#

 

 

 

 

Information About Fan Trays

Hot-swappable fan trays are provided in all devices in the Cisco Nexus 7000 Series to manage airflow and cooling for the entire device. Each fan tray contains multiple fans to provide redundancy. The device can continue functioning in the following situations:

One or more fans fail within a fan tray—Even with multiple fan failures, the Cisco Nexus 7000 Series device can continue functioning. When a fan fails within a tray, the functioning fans in the module increase their speed to compensate for the failed fans.

The fan tray is removed for replacement—The fan tray is designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system. When replacing a failed fan tray in a running system, be sure to promptly replace the fan tray.

Tip If one or more fans fail within a fan tray, the Fan Status LED turns red. A fan failure could lead to temperature alarms if not corrected immediately.

The fan status is continuously monitored by the software. In case of a fan failure, these actions occur:

System messages are displayed.

Call Home alerts are sent (if configured).

SNMP notifications are sent (if configured).

Use the show environment fan command to display the fan module status (see Example 6-8).

Example 6-8 Displays Chassis Fan Information

switch# show environment fan

------------------------------------------------------

 

 

 

Fan

Model

Hw

Status

------------------------------------------------------

 

 

 

 

Chassis

DS-9SLOT-FAN

1.2

ok

 

 

 

PS-1

--

--

ok

 

 

 

PS-2

--

--

absent

 

 

 

Cisco Nexus 7000 Series Hardware Installation and Reference Guide

 

 

 

 

 

 

 

 

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Cisco Systems UCSCPCIECSC02, 7000, N7KC7004 manual Information About Fan Trays, Example 6-8 Displays Chassis Fan Information

N6KC600164P, UCSCPCIECSC02, N7KF248XP25E, N7KF248XT25E, N7KF248XT25EP1 specifications

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