create a text file that contains R1 and R2 , ie :

0BAD 0ABC

symrdf -f file.txt delepair -sid 123 -rdfg 123

By orphaned I meant the Storage Group the volume was originally in is now gone.  The RDF2 still exist.

Here is what support had me do.

list volumes and srdf group

symrdf -sid 123 list -rdfg -all

create text file with with two volumes

symrdf -f text.txt suspend -sid 123 -rdfg # -cons_exempt

delete pair

symrdf -f text.txt deletepair -sid 123 -rdfg #