Prepare for a rolling upgrade

Verify that the database schema matches the PolicyCenter data model as defined in the data model metadata files.

Use the database schema verification tool available from the Server Tools Database Table Info screen.

Verify that the source and target changes are compatible.

Use the system_tools -verifyconfig utility to verify compatibility between the source and target PolicyCenter builds.

Back up your current (source) application build.

Create a robust database backup and restore strategy in case there are problems upgrading individual cluster members.

Create a custom version label for your target deployment.

This step is optional. However, a version label provides a way to identify this new deployment for future reference.