You can migrate data to Plesk 12.5 from other servers managed by earlier Plesk versions by using the Plesk's Migration & Transfer Manager function. This function is available in Server Administration Panel > Tools & Settings > Migration & Transfer Manager if the corresponding component is installed on the server. This component is not included in typical installations. Alternatively, in case of a large amount of data, you can automate migration using the
migrate command-line utility.
For detailed information about migrating data to Plesk-managed servers, refer to the Deployment Guide.