Explanation: Two upgrades for Common Ground are includes migration of windows registry and includes database migration. Common Ground is a type of upgrade that allows you to upgrade your Cisco Unified Contact Center Enterprise (CCE) components from one release to another without changing the hardware or operating system1. Common Ground upgrade is supported for virtualized deployments on VMware ESXi hosts1. Common Ground upgrade involves the following steps1:
- Back up the existing configuration and data using the Disaster Recovery System (DRS).
- Run the User Migration Tool to export the user accounts from the source domain to a file.
- Run the Enhanced Database Migration Tool (EDMT) to migrate the Historical Data Server (HDS), Logger, and Business Analytics (BA) databases from the source servers to the destination servers.
- Run the Regutil Tool to export the Cisco Systems, Inc. registry from the source servers to a file.
- Run the Unified CCE Installer on the destination servers to install the new release of Unified CCE software.
- Import the user accounts from the file using the User Migration Tool.
- Import the Cisco Systems, Inc. registry from the file using the Regutil Tool.
- Restore the configuration and data from the DRS backup.
The Common Ground upgrade includes migration of windows registry because the Regutil Tool is used to export and import the Cisco Systems, Inc. registry from the source servers to the destination servers. The registry contains important information about the Unified CCE configuration, such as the instance name, the peripheral ID, the system ID, and the license key2. The registry migration ensures that the destination servers have the same settings as the source servers after the upgrade2.
The Common Ground upgrade includes database migration because the EDMT is used to migrate the HDS, Logger, and BA databases from the source servers to the destination servers. The databases contain historical and real-time data about the Unified CCE system, such as the call records, the agent statistics, the skill group statistics, and the reporting data3. The database migration ensures that the destination servers have the same data as the source servers after the upgrade3.
The Common Ground upgrade does not update IP address as appropriate because the IP addresses of the source and destination servers are not changed during the upgrade. The IP addresses are configured during the initial installation of the Unified CCE software and are not modified by the upgrade process1.
The Common Ground upgrade does not update Hostname as appropriate because the hostnames of the source and destination servers are not changed during the upgrade. The hostnames are configured during the initial installation of the Unified CCE software and are not modified by the upgrade process