Recently I have had some issues with SRDF on the VMAX3 that I manage. I was having issues trying to resolve it using the Unisphere GUI, which can be very limited in its capabilities, so I had to switch to command line. First you create a text file and put in it something like “00001 00002” (No quotation marks in file). Listing the two devices that need there pair broken. Then you run this command.
symrdf -sid 123 -rdfg 1 -file rdf.txt deletepair -force