Cisco Cisco Email Security Appliance C160 Mode D'Emploi

This graph also shows the threshold level for CPU usage. If you want to change the threshold level, use 
the System Administration > System Health page in web interface or 

healthconfig

 command in CLI. 

See 

.

This page also shows a graph that displays the amount of CPU used by different functions, including 
mail processing, spam and virus engines, reporting, and quarantines. The CPU-by-function graph is a 
good indicator of which areas of the product use the most resources on your system. If you need to 
optimize your appliance, this graph can help you determine which functions may need to be tuned or 
disabled.

The memory page swapping graph shows how frequently the system must page to disk. This graph also 
shows the threshold level for memory page swapping. If you want to change the threshold level, use the 
System Administration > System Health page in web interface or 

healthconfig

 command in CLI. See 

The resource conservation activity graph shows the number of times the appliance entered Resource 
Conservation Mode (RCM). For example, if the graph shows 

n

 times, it means that the appliance has 

entered RCM 

n

 times and exited at least 

n-1

 times. 

Your appliance should enter RCM infrequently and only during a very large or unusual increase in mail 
volume. If the Resource Conservation Activity graph shows that your appliance is entering RCS 
frequently, it may be an indication that the system is becoming overloaded.

The system is designed to swap memory regularly, so some memory swapping is expected and is not an 
indication of problems with your appliance. Unless the system consistently swaps memory in high 
volumes, memory swapping is normal and expected behavior, especially on C170 and C190 appliances. 
To improve performance, you may need to add appliances to your network or tune your configuration to 
ensure maximum throughput.

The All page consolidates all the previous system capacity reports onto a single page so you can view 
the relationship between the different reports. For example, you might view the message queue is high 
at the same time that excessive memory swapping takes place. This might be an indication that you have 
a capacity problem. You may want to save this page as PDF to preserve a snapshot of system 
performance for later reference (or to share with support staff). For information about generating PDFs 
in languages other than English, see the 

.

The System Status page provides a detailed representation of all real-time mail and DNS activity for the 
system. The information displayed is the same information that is available by using the 

status detail

 

and 

dnsstatus

 commands in the CLI. For more information, see “Monitoring Detailed Email Status” for 

the status detail command and “Checking the DNS Status” for the 

dnsstatus

 command in