Home > Networking Solutions > Converged and Hyperconverged Solutions > VxRail Networking Solutions > Guides > Dell EMC Networking SmartFabric Services Deployment with VxRail 4.7 > Unsupported environments
SFS does not currently support the following environments:
Note: SmartFabric Services for VxRail deployed with OS10 versions prior to OS10.5.0.5 is limited to a single rack deployment. Those deployments can be upgraded to OS10.5.0.5 but will continue operating with the VxRail L2 Single Rack personality and cannot be expanded to a multi-rack deployment at this time. See the VxRail L2 Single Rack personality section for more information.