Home > Workload Solutions > SAP > Guides > SAP HANA TDI Guides > Storage Configuration Best Practices for SAP HANA TDI with Dell Unity Storage > Document purpose
Before the SAP HANA TDI deployment model was available, customers who used the appliance model experienced the following limitations:
This guide describes a solution that uses SAP HANA in a TDI deployment scenario on Dell EMC Unity enterprise storage systems. This solution reduces hardware and operational costs, lowers risks, and increases server and network vendor flexibility.
The guide provides configuration recommendations that are based on SAP requirements for high availability and on the performance tests and results that are required to meet the SAP key performance indicators (KPIs) for SAP HANA TDI.