Yes, after last round of test and using 150GB file, I think that the 64KB test (writes and reads) looks good, specially the sequential.
Our systems are DW type of databases, so I am not too concern about the writes. But I was expecting 20ms or lower on the writing results. I think I will ask our SAN admin to create another LUN, so I can map it, assign to the cluster, and do another round of tests. I may ask for a different SAN configuration on that LAN and maybe do a customize Windows formatting too.
I think, not sure, our SAN does automatic tiered storage, but I can "force" or dictate which LUN goes on which tier. I'll validate that with our SAN expert.
Thanks again for reply! 🙂