Data in the Multi-Data Center environment must be replicated from the Master (supplier) to the Clones (consumers) as part of the initial setup procedure.
Following this initial replication, the following artifacts must be synced across data centers on a regular basis:
WebGate Profiles: While the WebGate profile is replicated to the Clone, the primary server list and logout URL details are updated with information about the Clone data center.
OAM Proxy Configurations
Session Manager configurations
Policy and partner data
Initial replication of data (when setting up the Multi-Data Center) must be done manually using the WLST.
Following this initial replication, WLST commands or the Automated Policy Sync Replication Service can be used to sync the already replicated data. When using the WLST, partner profiles and policies are exported from the Master data center and then imported to the Clone data center. Replication of data in a Multi-Data Center environment is a requirement and using WLST for this purpose is the minimum method for accomplishing this.
Automated Policy Synchronization (APS, also referred to as the Replication Service) is a set of REST API used to automatically replicate data from the Master data center to Clone data centers.
It can be configured to keep Access Manager data synchronized across multiple data centers. A valid replication agreement between the data centers must be present before APS can run. See Understanding the Multi-Data Center Synchronization.
APS is only designed to keep data centers in sync and it is not used to do a complete replication from scratch. You will first need to replicate data manually using the WLST to establish a base line.