Home > Workload Solutions > SAP > Guides > SAP HANA TDI Guides > Dell Validated Design for SAP HANA TDI with Dell PowerStore Storage > SAP HANA deployment models
An SAP HANA appliance includes integrated storage, compute, and network components. The appliance is certified by SAP, built by an SAP hardware partner, and shipped to customers with all its software components preinstalled, including the operating systems.
Preinstalled SAP HANA appliance solutions provide a faster time-to-market and easy integration into an SAP landscape. However, the appliance model has the following limitations for customers: