Recently, my company doubled in size by employees and datacenters through an acquisition of another company. My boss has presented the idea of using the newly acquired site for our disaster recovery site and replicate our SAN storage data to them. I currently run full backups every night that total in approximately 1.2 Terrabytes of data. He (my boss) decided that a DS3 line would suffice for the replication of the 1.2 Terrabytes, but I calculate this would take about three weeks. Obviously this would not work and installing OC-48 circuits is out of the question. Does anyone know of whitepapers or case studies of companies trying to replicate disk-to-disk backups of this size over a WAN connection? My goal is to present the infrastructure and technologies needed to accomplish this feat.