Galaxy Raid GHDX4 SAS<>SAS/ SATA 12Bay Installation / Hardware Reference Manual
3.2
Sample Topology
Sample 1: DAS (Direct-Attached Storage) Connection with redundant
host paths
Although the Galaxy HDX4 can come with a single RAID controller, it
is still highly feasible to create fault-tolerant cable links to application
servers.
3-4
Fault-tolerant Host Connection