i am 99.9% sure you are using dynamic SRDF [IMAGE]  create a file that contains source device in one column and target device in another.  symrdf createpair -file dyngrp_xxxxxxx -sid yyyy -rdfg xx -type rdf1 -invalidate r2 symrdf -file dyngrp_xxxxxxx set mode acp_disk -rdfg xx symrdf -file dyngrp_xxxxxxx establish -rdfg xx   when replication gets close to completion  symrdf -file dyngrp_xxxxxxx set mode async
I am trying to convert a TDEV to RDF1 device using the command set "convert dev 777 to RDF1+TDEV, ra_group=3, remote_dev=888, invalidate=R2, start_copy=yes;" but I am getting error   Error occurred while Defining change number 1:  The feature being requested is not currently licensed Both source and target will be thin devices and we are using SRDF Async . Please suggest 
Converting Thin devices to RDF1