To access the block devices from the SAP HANA nodes, first enable native Linux multipathing. Follow the steps described in the Dell EMC Host Connectivity Guide for Linux to enable DM-MPIO on your operating system version. Figure 27 shows an example of a multipath.conf file.
Figure 27. Sample multipath.conf file
The SAP HANA persistent devices are visible on an SAP HANA worker host after a restart or a rescan (using the rescan-scsi-bus.sh command). To verify that all devices are present and that each device has the number of active paths you configured (as shown in Figure 28, type the following command:
Figure 28. Sample Multipath -ll
Dell EMC uses the LUN UUID to identify the correct storage devices. To view the identifier of a Unity LUN, go to the Volume tab in the configuration workspace in the Dell EMC Unisphere for Unity.