Home > Workload Solutions > SAP > Guides > SAP HANA TDI Guides > Dell Validated Design for SAP HANA TDI with PowerEdge Systems > Scale-out considerations
Because Dell’s SAP HANA solutions are on scalable building blocks, you can easily add fixed increment blocks. SAP HANA-certified enterprise storage components for Dell storage arrays with dual redundant controllers provide the persistent storage for the SAP HANA database. All components are highly redundant, including storage, fabric, network, and controllers. For information about an SAP HANA TDI scale-out implementation on PowerEdge infrastructure, see Dell Validated Design for SAP HANA Scale-Out TDI solutions on Dell PowerEdge Servers | Dell Technologies.