Home > Workload Solutions > SAP > Archive > SC Series Storage Configuration Best Practices for SAP HANA TDI > Creating fault domains
We recommend two fault domains for failover purposes. Each domain contains FC ports from both SC Series controllers that are connecting each FC switch. The number of required FC ports depends on the size of your SAP HANA landscape.
For illustration purposes, the following figure shows the top fault domain that is configured to contain a total of four FC ports from both SC Series controllers.
The settings in our example are as follows:
Top Controller: Port 1 and port 3
Bottom Controller: Port 1 and port 3
Top Controller: Port 2 and port 4
Bottom Controller: Port 2 and port 4