NetApp FC4600 Hardware Cabling Manual page 68

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Table 12 Redundant and Non-Redundant Components in a Mixed Configuration
with Three Hosts and a Controller Tray or a Controller-Drive Tray
Component
Host/servers 1 and 2 (see note)
Host/server 3
HBA or Ethernet iSCSI adapter
Host-to-controller cable
Switch
Controller
Note – The hosts/servers in this example must be clustered to be redundant.
Figure 10 Mixed Topology – Three Hosts and a Controller Tray
Redundant
Redundant
Redundant
Redundant
Redundant
Redundant
Non-Redundant
Non-redundant