I have a need to create another datacenter and upgrade my existing Cassandra 
from 2.1.13 to Cassandra 3.0.9.

Can I do this as one step?  Create a new Cassandra ring that is version 3.0.9 
and replicate the data from an existing ring that is Cassandra 2.1.13?

After replicating to the new ring if possible them I would upgrade the old ring 
to Cassandra 3.0.9

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