Cisco Systems Cisco 12816 Manuale Utente

The following console error message indicates that the system has detected an 
overtemperature condition or out-of-tolerance power value inside the system:

Queued messages:

%ENVM-1-SHUTDOWN: Environmental Monitor initiated shutdown

The preceding message could also indicate a faulty component or temperature 
sensor. Enter the show environment command or the show environment all 
command at the user EXEC prompt to display information about the internal 
system environment. The information generated by these commands include:

Voltage measurements on each card from the DC-to-DC converter

The +5 VDC for the MBus module

The operating voltage for the blower module.

Temperature measurements received by two sensors on each card (one for 
inlet air temperature and one for the card’s hot-spot temperature), as well as 
temperature measurements from sensors located in each power supply.

If an environmental shutdown results from an overtemperature or out-of-tolerance 
condition, the Fault indicator on the power supply lights before the system shuts 
down.

Although an overtemperature condition is unlikely at initial system startup, make 
sure that:

Heated exhaust air from other equipment in the immediate environment is not 
entering the chassis card cage vents.

You allow sufficient air flow by maintaining a minimum of 6 inches 
(15.24 cm) of clearance at both the inlet and exhaust openings on the chassis 
and the power modules to allow cool air to enter freely and hot air to be 
expelled from the chassis.

Use the following procedure to isolate a problem with the chassis cooling system 
if you have an overtemperature condition.