Product : VMware, Site Recovery/RaaS, 43191
Feature : Deployment type, General, Architecture
Content Owner:  Viktor van den Berg
VMware Site Recovery is consumed as a service, but requires an on-premises Site Recovery Manager instance/environment.
vCloud Air DR is consumed as a service and uses a special version of vSphere Replication. vSphere Replication requires one or more on-premises vSR appliances which connect to to vSR in the vCloud Air tenant.