PERC H710p and vSAN

We have a couple of R720xd's running vSAN, but we're kind of stuck with 6.0 U3 due to Dell not certifying drivers for vSAN. How come?

What can we do to pressure Dell to fix the driver? Replacing HBA in the nodes is no fun, and will require quite some work and resync of all data..

How have you guys handled this? Migrated to newer hardware?