About this task
The ClusterDBMigrationService-3.9.0.3 service is delivered and pre-loaded as a part of Element Manager release 3.9. The ClusterDBMigrationService-3.9.0.3 service is versioned as a 3.9 service. However, the snap-in is compatible and intended for installation on 3.8.1.1 Avaya Breeze® platform clusters.
You must install the ClusterDBMigrationService on the Avaya Breeze® platform 3.8.x cluster before you backup the context store, engagement designer database and migrate to Avaya Breeze® platform 3.9.0.3 with context store 3.10.0.2. This enables you to restore the existing cluster database backed up from 3.8.x to the cluster following the upgrade of the cluster servers to Avaya Breeze® platform 3.9.
Important:
The ClusterDBMigrationService is required for the cluster database backup of snap-ins that need to be restored to Avaya Breeze® platform 3.9.0.3 with context store 3.10.0.2.
As a precaution, take a remote backup of your cluster databases before installing the ClusterDBMigrationService. If a reversion is necessary, you can still use these backups on Avaya Breeze® platform 3.8.x and earlier nodes. When you install ClusterDBMigrationService on Avaya Breeze® platform cluster, the postgres compatibility version is permanently changed to postgres 13 and is no longer compatible with Avaya Breeze® platform 3.8.1.1 and before releases.
