Cisco Cisco IP Contact Center Release 4.6.1 Installation Guide

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Chapter 5      ICM 4.6.2 to ICM 5.0 Common Ground Upgrade Migration
Common Ground Upgrade Migration Activities
5-10
Cisco ICM Software Upgrade Migration Guide, Release 6.0(0)
Perform System Backups
The ICR/ICM nodes should not be upgraded until preparations have been made to 
revert the nodes back to their original version of the ICR/ICM software in the 
unlikely case of a catastrophic failure during the upgrade migration. It is 
recommended that each ICR/ICM node be imaged using commercial imaging 
software.
It is also recommended you backup all MS SQL databases using the SQL 
backup/restore process. A full SQL backup of the database is recommended
Note
It is recommended you have adequate amount of free space on the disk to ensure 
there is sufficient disk space to export the configuration. Additional space is 
needed to export the historical data. You can export to a network drive.
How to backup the AW HDS database if the machine is a Historical Data Server
Step 1
Perform a complete SQL backup of the historical database using the SQL 
backup/restore procedure. This database needs to be restored to its original 
location if there is any problem with the upgrade.
Step 2
Copy the awref.ini file (found in both the WINNT and the icr\bin into the 
c:\icrbackoutxxx folder. This file is overwritten during the upgrade process. If it 
is necessary to revert back to the original version of ICR/ICM, be aware that this 
file must be moved back as well.
Disable Configuration Changes
Disabling configuration updates is accomplished by setting a registry variable for 
each side of the CallRouter to disallow any updates (updates are prevented and an 
error message is returned). A simple utility or batch file can be created to make 
this easy.
Make the following registry changes on the CallRouter:
HKEY_LOCAL_MACHINE\Software\
Cisco\ICM\<instance name>\RouterA\Router\
CurrentVersion\Configuration\Global\
DBMaintenance = 1.