Hello,   Sorry no.  A volume can only be replicated to one partner, and you can not re-replicate a replica.   I have heard of customers using scripts to promote/clone a replica to present to a host on DR side to either backup to tape, or use host based software to replicate to other storage.   Regards,   Don 
Hello,  I have two 6510e on campus. One of them is the primary (in our primary data center)  and the other is in our backup data center (also on campus) and is just there to replicate to. It's a fairly simple setup and it works wonderfully. Now the wrench: it works so well that people are starting to ask if there is a way to have a third unit (maybe a PS6610E, not sure yet) sit in our DR site and replicate the secondary unit.  Thanks!
One to Many Replication, or Can I do This?