Five out of 4S servers using one particular enterprise storage system are experiencing
performance degradation during normal working hours. All 48 servers have similar workload
characteristics. There are multiple disk groups that make up your enterprise storage.
What should be monitored to determine the root cause?

A.
IOPS per RAID array

B.
Cache read hit ratio

C.
Traffic levels on the SAN switches

D.
Clone sessions

Explanation: