To clarify, I was referring to the File side of VNX.  ECC can discover the Block side of VNX through SMI-S, the same way it would discover a Clariion CX-4 array.  Since you mentioned Isilon, I assumed you were only interested in the File side of VNX.  As I stated, ECC provides no way to query Isilon, Celerrra, VNX or any similar NAS solution.
Is VNX and VMAX 40K supported on ECC? Also is Isilon supported on ECC?
Is VNX and VMAX 40K supported on ECC?