Replication Server 15.7 installation process for Linux on POWER does not include starting a sample Replication Server. This is because ERSSD is not supported for 64-bit Linux on POWER.
The ERSSD requires Sybase SQL Anywhere® Server, which is not available in Replication Server 15.7 for Linux on POWER. Therefore, the procedures related to starting a sample Replication Server in the Replication Server Installation Guide are not relevant.