Amazing features of Vsan which myself found are
Virtual SAN is a hardware agnostic solution that can be deployed on hardware of all major server vendors. This gives you the flexibility to run heterogeneous hardware with different configurations, operating systems, and magnetic disks.
Virtual SAN leverages distributed RAID and cache mirroring to ensure that data is never lost in case of disk, host or network failures. Virtual SAN's SPBM feature lets administrators maximize resiliency by defining availability on a per-virtual machine basis: When setting the storage policy for each virtual machine, administrators can specify how many host, network or disk failures it can tolerate in a Virtual SAN cluster.
I'm guessing that this might be for CloudCred points...