The customer has an existing DS4700 Model 70 in their throughput intensive production
environment and recently implemented an asynchronous ERM on this storage array as part of his
evolving DR strategy. They are now reporting degraded performance. What could be a possible
cause?

A.
Not enough cache memory installed.

B.
Dedicated ports required for ERM

C.
Intersite link bandwidth is not enough for the amount of change data.

D.
All of the above