Fan failures – Cisco 7200 VXR User Manual

Page 64

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Cisco 7200 VXR Installation and Configuration Guide

OL-5013-09

Chapter 1 Cisco 7200 VXR Product Overview

Functional Overview

Following is sample output of the show environment all command:

NPE300(boot)# show environment all

Power Supplies:

Power Supply 1 is empty.

Power Supply 2 is Zytek AC Power Supply. Unit is on.

Temperature readings:

chassis inlet measured at 26C/78F

chassis outlet 1 measured at 28C/82F

chassis outlet 2 measured at 29C/84F

chassis outlet 3 measured at 33C/91F

Voltage readings:

+3.45 V measured at +3.46 V

+5.15 V measured at +5.25 V

+12.15 V measured at +12.24 V

-11.95 V measured at -11.81 V

Envm stats saved 138 time(s) since reload

Fan Failures

When the system power is on, all three fans should be operational. The system continues to operate if a
fan fails; however, if the air temperature exceeds a defined threshold, the system controller displays
warning messages on the console terminal, and if the temperature exceeds the shutdown threshold, the
system controller shuts down the system.

If the system does shut down because the temperature exceeded the shutdown threshold, the system
displays the following message on the console screen and in the environment display when the system
restarts:

Queued messages:

%ENVM-1-SHUTDOWN: Environmental Monitor initiated shutdown

For complete descriptions and instructions for the environmental monitor commands, refer to the
Configuration Fundamentals Configuration Guide and Configuration Fundamentals Command
Reference
publications, which are available on Cisco.com or the Documentation DVD.

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