Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual
4-8 Subsystem Connection and Operation
DIP Switch Configurations and Host Port Connectivity:
• Pin #4: The host channels of the partner controllers are connected together
across the backplane signal paths. Host ports are combined into
host loops; for example, the CH0 ports on Controller A and
Controller B form a 4-port host loop.
Every host I/O port connects to both of the RAID controllers.
Figure 4-3: Hub Enabled: Controller A and B ports Combined
into Host Loops.