Time will tell
I know that EMC has the ability to constantly pivot and use their salesforce to push new product, but I think they made a BIG mistake with how hard they pushed Xtremio. I can't see why you would develop VMAX to an all flash platform if you thought Xtremio was capable.....just makes NO sense to me.
Me thinks that the way that drive capacities expanded way more quickly than anyone had anticipated and the Xtremio architecture (Gen4!!!!) can't handle it.
Disclaimer: VAR who carries multiple storage vendors (including EMC) but sells majority NetApp