LOL, I feel Eric's pain.  This double-ring thing can throw you for a loop since, like I said, there is only one place it is documented and it is only *implied*, so one is not sure he is interpreting it correctly.  Even the source for NTS doesn't mention this.

Thanks for everyone's help on this.

On 6/16/2011 5:43 AM, aaron morton wrote:
See this thread for background http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Replica-data-distributing-between-racks-td6324819.html

In a multi DC environment, if you calculate the initial tokens for the entire cluster data will not be evenly distributed. 

Cheers

-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton