Migrate PE
As an alternative to upgrading, you can migrate your PE installation. Migrating results in little or no downtime, but it requires additional system resources because you must configure a new primary server.
Migrate your installation
To migrate your installation, create a new primary server. Then, on the new primary server, restore your existing installation from a backup and proceed with upgrading PE.
Before you begin
Review the upgrade cautions for major changes to architecture and infrastructure components which might affect your upgrade.