seems like a bad config
I mean an array that can only deliver 33k iops at 300ms? Must've been doing something very wrong. Never used VMAX myself but that number seems just bad.
Also 177k iops from cache on infinidat? Also seems bad, would expect at least 3 to 4 times that. Should be able to get more than that with just ssds pretty easily.
Maybe these folks have some really strange workloads but those numbers make little sense to me.
Without more details this is not a case study I would trust.