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 under- utilized. 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
