Dell PS4100 Technical Information download pdf (Page 18)

June 2012 Dell EqualLogic Configuration Guide v13.2 12

In a redundant switch SAN configuration, to optimize the system response in the event you have a

vertical port failover you must split the vertical port pair connections between both SAN switches.

The connection paths illustrated in Figure 6 and Figure 7 show how to alternate the port connection

paths between the two controllers. Also note how IP addresses are assigned to vertical port pairs.

Figure 6 PS4100 Vertical Port Failover and Optimal Connection Paths

IMPORTANT: By alternating switch connection paths between ports in a vertical port pair, port

failover allows the array to maintain 100% bandwidth capability in the event of a switch failure.

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Dell PS4100 Technical Information Page 18