Cisco Systems 274 Manuale Utente

Proper use of preventive maintenance procedures can keep the Wide Area 
Virtualization Engine (WAVE) in good operating condition and minimize the need 
for costly, time-consuming service procedures. This chapter contains 
maintenance procedures that you should perform regularly.

This chapter covers the tasks required for maintaining a WAVE appliance or a 
WAVE farm:

An exhaust fan in the power supply cools the power supply and system by drawing 
air in through various openings in the system and blowing it out the back. 
However, the fan also draws dust and other particles into the system, causing 
contaminant buildup, which results in an increase in the system’s internal 
temperature and interferes with the operation of various system components.

To avoid these conditions, we recommend keeping your work environment clean 
to reduce the amount of dust and dirt around the system, thereby reducing the 
amount of contaminants drawn into the system by the power supply fan.

This section discusses various environmental factors that can adversely affect 
system performance and longevity.