I'm guessing you've not read this.
https://h20195.www2.hpe.com/V2/GetPDF.a ... 318ENW.pdfRead the section on
Steps for Converting from an existing 1:1 Remote Copy Configuration to an SLD Remote Copy ConfigurationThe example is going from 1:1 sync to SLD but it also states
The following steps show how to add RCIP Remote Copy targets to the existing Remote Copy 1:1 configuration in our example. It doesn’t
matter whether you are converting a Periodic Asynchronous 1:1 to SLD or a synchronous 1:1 to SLD, these steps are the same. Just ensure that you're not running out of ports on your 8200s. With only 1Gbit RCIP port I would not use anything other than FC ports for sync replication and doing that without an additional HBA would be a bad idea.