During a Symmetrix VMAX performance analysis, you notice that a collection of VMAX
devices has front-end I/O rates that are much higher than the back-end I/O rates. What
might be the reason for this?

A.
Devices are replicated with TimeFinder/Clone

B.
Devices are RAID 5 protected.

C.
Workload has a high percentage of writes.

D.
Workload has a high percentage of read hits.