HP StorageWorks 2.140 Director Switch - Manual (Page 182)

Optional features 182
The primary choice for data movement will be from the Source Device in port 14 and out port 45 on
Switch 1, in port 11 and out port 21 on Switch 2, and through Switch 3 to either Destination Device
A or B.
Figure 85 Specifying preferred path for switch 1
Figure 86 Specifying preferred path for switch 2