Dell PowerVault MD3000 - Manual (Page 23)

Cluster Configurations
Figure 9 shows a non-redundant two-node cluster using a single port of one HBA installed
in the host to connect to the MD3000 RAID enclosure. Figure 10 shows a redundant
two-node cluster configuration using a single RAID enclosure. Figure 11 shows a redundant
two-node cluster configuration using dual HBAs.
Figure 9. Cabling a Two-Node Cluster (Single HBA, Non-Redundant Data Paths from Each Node)
NOTE: This configuration is supported with Windows Clustering only.