/ReplicationSourcePath:"path_to_data_source" Optional. Specifies the directory path to a backup of an AD LDS instance data. ...

/ReplicationSourcePath:"path_to_data_source"
Optional. Specifies the directory path to a backup of an AD LDS instance data. When this option is specified, AD LDS setup attempts an installation from media. This parameter can only be specified in cases where InstanceType is set to Replica.