Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

Click Upgrade Options. 

The system analyzes historical data (up to three months) in the Status Logs to determine the health of 
the appliance and provides recommendation on whether the appliance can be upgraded. 

For the system to perform this analysis, the Status Logs must contain a minimum of one month 
of logging data. 

Depending on the result of the analysis, do one of the following:

If the analysis detected that the system has experienced one of the following problems in the last 
few months, follow the displayed recommendation.

Resource conservation mode

Delay in mail processing

High CPU usage

High memory usage

High memory page swapping

If the system is unable to perform the analysis (due to insufficient data in the Status Logs), no 
recommendations are provided. In this scenario, consider upgrading the appliance only if the 
appliance has not experienced any problems recently.

If the analysis did not detect any problems, go to 

Choose an option: 

Unless you are installing a previously-downloaded installer, select an AsyncOS version from the list of 
available upgrades. 

If you are installing: 

Choose whether or not to save the current configuration to the 

configuration

 directory on the 

appliance.

Choose whether or not to mask the passwords in the configuration file.

Download and install the 
upgrade in a single operation 

Click Download and Install. 

If you have already downloaded an installer, you will be prompted to 
overwrite the existing download. 

Download an upgrade installer  Click Download only. 

If you have already downloaded an installer, you will be prompted to 
overwrite the existing download. 

The installer downloads in the background without interrupting 
service. 

Install a downloaded upgrade 
installer 

Click Install.

This option appears only if an installer has been downloaded. 

The AsyncOS version to be installed is noted below the Install 
option.