Cisco Cisco Email Security Appliance X1050 Troubleshooting Guide

This document describes how to upgrade the Cisco Email Security Appliance (ESA) with the GUI
or the CLI.

Cisco recommends that you review the 

 and that you complete these steps in

order to prepare your system for the ESA upgrade that is described in this document:

Copy and save the XML configuration file from the ESA.

1.

If you use the Safelist/Blocklist feature, then 

.

2.

Suspend the listeners.
Note: If you have a single ESA and you do not want to impact your mail-flow, then do not
suspend the listeners. The mail-flow is impacted during the reboot.

3.

Upgrade your server via the GUI. Cisco recommends that you choose the latest available
version from the list.

4.

If you suspended the listeners (Step 3), then enter Resume into the CLI in order to activate
the listeners after the upgrade is complete.

5.

Warning: Ensure operational health of the appliance before you start any upgrade. Enter the
version command in the CLI in order to ensure that RAID status is "Optimal."  If there is a
failed hard disk drive (HDD) on the appliance, open a support case and complete a HDD
RMA and rebuild prior to the upgrade.  If you upgrade an appliance with a failed HDD, it
might lead to HDD corruption and unforeseen issues on an appliance that runs off a single
HDD.

Note: Cisco recommends that when you upgrade, run the upgrade via the CLI. This provides
more details as to the download of the upgrade packages, and also details of the upgrade
process. In case of upgrade issues or failures, the output from the CLI proves useful to Cisco
Support when troubleshooting.