HP Surestore Disk Array 12h and FC60 - Manual (Page 112)

112 Topologies for HP-UX
Figure 38 illustrates the single-system distance topology with one host with two Fibre
Channel I/O adapters and three dual-controller module disk arrays. In this example two of
the HP Fibre Channel-AL Hub’s ten ports are unused.
Figure 38 Single-System Distance Topology