Can someone explain the (async) replication architecture and delivery mechanism when deployed between 2 3620i arrays at different sites. i.e across WAN
1. Are iscsi switches mandatory i.e the replication traffic is between arrays on 2 connected switches
2. is it possible if the Arrays are connected directly to their respective hosts (in this case esx) and not to any switches. i.e only the hosts and array management ports have network connectivity to the wider world.
thanks