About this task
Rolling back the system, restores the system to the pre-upgrade state by reinstalling the previous release of Avaya Aura® MS. You might need to roll back the system if:
Functionality in the new version is not compatible with other components of your solution.
The upgrade process encountered an error and did not complete successfully.
An unsupported upgrade path ended the upgrade process.
The upgrade tool could not read the backup data file.
You stopped the upgrade during the procedure.
To roll back to Avaya Aura® MS 8.0.x or earlier 10.1.0 requires a complete uninstall of Avaya Aura® MS 10.2 and reinstall of the previous release. Avaya Aura® MS backups are used to restore the system configuration and application data. Therefore, all configuration settings and application data are rolled back to the state of the previous installation.
To roll back a multi-server cluster, perform the following procedure on each server one at a time. When you roll back the servers one at a time, the other servers in the cluster can provide service. It is recommended that you roll back the Primary node first and then follow with the Secondary node and standard nodes, if any.
Important:
Either the Primary or Secondary server must remain in service for the cluster to remain operational. Cluster service is lost if the Primary and Secondary servers are out of service at the same time.
Perform the following procedure to roll back Avaya Aura® MS 10.2 to a previous version of Avaya Aura® MS.
