Cisco Cisco Unified IP Interactive Voice Response (IVR) 8.0(1) Installation Guide

Creating multiple Cisco CRS 6.0 cluster profiles for the same server.

Upgrading some, but not all, servers in a cluster.

Adding or removing servers, Cisco CRS products, or Cisco CRS software 
components during an upgrade.

For example, If you want to add standby servers to a Cisco CRS deployment, 
upgrade to Cisco CRS 6.0 and then implement the standby servers.

Before you upgrade Cisco CRS, review the 

 and perform the following general procedures that 

are described in that section:

.

Check the current Cisco CRS release notes for important 
information that may not be included in this manual.

Review the upgrade notes.

If you will be deploying a standby server for high availability, 
review the guidelines for deploying high availability.

If you are upgrading a single-server deployment (a deployment 
in which Cisco CRS and Cisco Unified Communications 
Manager are installed on the same server), make sure that BARS 
is installed on that server and that it is configured as a backup 
server.

Make sure that Internet Explorer is configured for use with the 
BARS.

Obtain the general information that you will need to provide 
during the upgrade procedure.

Obtain your Cisco CRS 6.0 license files

Run the Cisco CRS Pre-Upgrade Tool

Make sure that you have access to the appropriate version of the 
BARS from a server that is not in the Cisco CRS cluster.