The customer understands the potential benefits of virtualizing their heterogeneous storage environment. However, the customer also requires immediate access to their data with disaster recovery…

The customer understands the potential benefits of virtualizing their heterogeneous storage environment. However, the customer also requires immediate access to their data with disaster recovery capabilities. Two sites are 100km apart and the third is 500km away. Which feature of the SAN Volume Controller would help the customer meet these requirements compared to the V7000?