Fibre Channel for SAN storage
Ethernet for NFS shared NAS storage
With the Storage Area Networks the Fibre Channel storage LUNs4
are mapped to SAP HANA server
hosts with a point-to-point connection. In the event of a failover to the standby host, the remapping
is managed by the SAP HANA Storage Connector . SAN LUNs appear to the OS as disks (along with
the local disks). For shared SAP HANA binaries NFS/NAS5
storage is required. Redundant connectivity
to the corporate network via LAN (Ethernet) and to storage via Storage Area Network (SAN) must
always be configured.
In the following picture, the internode network connected via Ethernet (LAN) is attached to an NFSshared
NAS storage holding the SAP HANA binaries, which all SAP HANA servers must be able to
access. In addition, each SAP HANA server is connected to its own non-shared storage; the Fibre
Channel protocol controls the mapping of each persistence (data and log areas) to LUNs on the SAN.
Reconnection of the LUNs residing on the storage in the event of a failover is supported by the SAP
HANA Storage Connector API.