In the "Namespace Planning" section of this Technet article (http://technet.microsoft.com/en-us/library/dd638104.aspx
), Microsoft summarise "The key requirement is that, regardless of the naming convention you use, each datacenter should have its own unique namespace
I am confused as to how this should be achieved ?
Is each site a subdomain of a root forest ? In which case, how does DAG work, because I thought DAG had to be in the same domain, not just the same forest ? (I believe this is a Windows Failover Cluster restriction that it cannot cross domains, hence it's also a DAG restriction)