Home > Integrated Products > VxRail > Guides > Architecture Guide—VMware Cloud Foundation on VxRail: VCF 4.5 on VxRail 7.0 > SDDC Manager
SDDC Manager orchestrates the deployment, configuration, and LCM of vCenter and NSX above the ESXi and vSAN layers of VxRail. It unifies multiple VxRail clusters as workload domains (WLDs) or as multiple WLD. For multiple-availability zones (multi-AZs), SDDC Manager creates the VxRail vSAN stretched cluster configuration for a dual-availability zone (AZ) WLD.