Try doing a symconfigure to convert the devices from staic rdf to dynamic   convert rdf dev [: ] to dynamic;
Good day  I am trying to clean up some devices that are no longer in use in preparation of retiring a VMAX array.  I currently have a bunch of RDF1+Mir (as/400_m2107_A02 emulated devices). I have the devices in a device group, the R1's are mapped to a FA, I am able to symrdf -g ***** split, however I am not able to delete the pair after the split. I get the error the specified device does not have the dynamic RDF1 or RDF2 capable attribute set. When I try to set that attribute on the device, I get another error that stated this operation is not allowed on an RDF device.  Now I am at a loss on what I can do here. I no longer have EMC support on these boxes,  I am using both command line and Unisphere to do this, but am not able to get these pairs split so I can delete the devices.  any help would be greatly appreciated  Thanks
Need some help deleting RDF1+Mir pairs