It is possible to roll back, or back out, the
Policy Management software to the previous release in a production environment. The overall sequence is the reverse of the upgrade sequence:
- Roll back database clusters.
- Roll back SCEF clusters.
- Roll back the SCEF-FE cluster.
- Roll back the CMP cluster. (You cannot begin this operation until all other clusters are rolled back.)
In the same way that you can roll back from an upgrade from any point of operator intervention, you can also upgrade from a rollback from any point of operator intervention. Whenever the action Continue Rollback is available, the action Resume Upgrade is also available.