The SAP HANA system combines SAP software components that are optimized on proven and certified SAP partner-provided hardware. Two models are available for on-premises deployment, as shown in the following figure:
Figure 1. SAP HANA appliance model and TDI model comparison
By default, an SAP HANA appliance includes integrated storage, compute, and network components. The appliance is certified by SAP, built by an SAP HANA hardware partner, and shipped to customers with all its software components preinstalled, including the operating systems and SAP HANA software.
Dell Technologies provides preinstalled SAP HANA appliance solutions for a faster time-to-market and easy integration into an SAP landscape. However, the SAP HANA appliance model presents the following limitations for customers:
The TDI deployment model enables customers to choose from a broad portfolio of SAP HANA certified servers that can be combined with SAP certified network and storage components. Different workloads can share the storage and network components to optimize the total cost of ownership (TCO). Customers can seamlessly integrate SAP HANA into existing data center operations such as disaster recovery, data protection, monitoring, and management, reducing the cost, time-to-value, and risk of an overall SAP HANA adoption. For more information, see the following SAP documents: