You work as the Storage Administrator (SA) at Certkiller .com. Certkiller .com has an SRDF/S and a Mirror/View/S implementation that has been put into production. You need to monitor the SRDF/S and a Mirror/View/S implementation.
What would be the most important metric you should track?

A.
Read cache size.

B.
The network bit error rate.

C.
Host measures response time.

D.
Elapsed wall time of processes.

E.
Storage utilization in the subsystem.

Explanation:
SRDF/S and Mirrorview/S do not return a write has been complete to the host until the remote site returns a complete so host based response time is critical in measuring the overall performance of this kind of implementation.