I recently had some volumes set in a storage group also set in RDF. They were in the RDF1-TDEV mode. I removed them from the storage group without first breaking the RDF. I then found out the hard way that it was impossible to delete that volume until the RDF was broken. I need the volume in the TDEV mode so it can be deleted. To do this I had to go into command line and use solutions enabler.
First I had to find the volume I wanted to delete and the RDF group it was in.
symrdf -sid 123 list -rdfg -all
That gave me a list of volumes and what volumes it was being synced up to.
I then created a text file with the two volumes in it.
To break this pair I ran this command
symrdf -f text.txt suspend -sid 123 -rdfg # -cons_exempt
Then I can finally delete the pair.
symrdf -f text.txt deletepair -sid 123 -rdfg #
Now that is done I can finally delete the volume.
A lot of work just to remove 1 volume.