The FC SAN network must support 16 Gb/s or 32 Gb/s link speed on all components: HBAs, SAN ports, and PowerStore FE I/O modules. When SAN switches are connected using Inter-Switch Links (ISLs), the aggregated bandwidth of the ISLs must be able to support the aggregated total bandwidth of all the SAP HANA nodes that are using these ISLs. An SAP HANA node requires the maximum bandwidth of 400 MB/s.
To connect the SAP HANA nodes using NAS/NFS, you need a dedicated storage IP network that has redundant switches with 25 Gb/s link speed on all components, including host network interface cards (NICs) and switch ports. Jumbo frames with MTU size 9000 are also required and must be set on all network components. When IP switches are connected using uplinks, the aggregated bandwidth of the uplinks must be able to support the aggregated total bandwidth of all the SAP HANA nodes that are using these uplinks. An SAP HANA node requires the maximum bandwidth of 400 MB/s.
PowerStore systems support direct attachment of the SAP HANA hosts to the appliance through FC if the hosts connect to both the PowerStore nodes and have the required native Linux multipathing software (DM-MPIO). Even though direct-attached FC connections are supported with PowerStore, Dell Technologies strongly recommends using switches from production environments to provide HA and redundancy and protect SAP HANA against any component failures.