Dell EqualLogic PS Series Installation And Setup page 33

Installation and Setup Installing Array Hardware
At a minimum, connect network cables to Ethernet 0 on both control modules and
then connect the cables to a network switch. See Figure 2-13.
Figure 2-13: Minimum PS5500 Network Configuration
For maximum bandwidth and availability, it is recommended that you use six
network cables to connect all the network interfaces to multiple network switches.
The switches must be connected together with interswitch links that have
sufficient bandwidth. See Figure 2-14.
Figure 2-14: Recommended PS5500 Network Configuration
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