Last month, you successfully merged two (2) local SAN islands into a single core/edge fabric
topology and connected storage devices to the core switches. Performance benchmarks were met
or exceeded. In recent days, server administrators have documented a slow down in performance
as I/O demands have increased. Storage administrators report that all storage ports are underutilized. What is the most likely explanation?

A.
conflicts between SAN routing protocols

B.
storage port buffer credit limits have restricted I/O capabilities

C.
multiple process login failures

D.
over utilization of one or more ISLs

Explanation: