A customer’s storage environment is organized into four singledirector fabrics, one each for the Engineering, Marketing, Sales, and Finance divisions. The directors are MDS9509s populated with several switch modules providing 64 switch ports in each director.
Hosts and storage frames connect to each fabric with no more than 70% of available ports in use.
There is complete isolation between the four SAN islands.
With the planned rollout of new crossfunctional applications, the customer needs hosts in each fabric to access storage in the other three fabrics. It is acceptable for hosttostorage traffic to traverse up to two hops.
What is the most efficient and least disruptive SAN solution that would meet this need?

A.
Convert to core/edge single fabric isolating all storage to the core director

B.
Implement InterVSAN routing to allow traffic to traverse VSANs

C.
ISLs between adjacent directorpairs to create a partial mesh

D.
ISLs between all directorpairs to create a full mesh