Product : Dell EMC, VxRail [HCI]/7.0.100, x86
Feature : Stretched Cluster (SC), Disaster Recovery, Data Availability
Content Owner:  Herman Rutten
VMware vSphere: Yes (certified)
There is read-locality in place preventing sub-optimal cross-site data transfers.

vSAN 7.0 introduces redirection for all VM I/O from a capacity-strained site to the other site, untill the capacity is freed up. This feature improves the uptime of VMs.