Dell PowerEdge M420 8/4 Gbps FC SAN Module Administrator's Guide - Page 27

Port Grouping policy 3 F_Port1 F_Port2 F_Port3 F_Port4 F_Port5 F_Port6 F_Port7 F_Port8 N_Port1 N_Port2 FC SAN PG1 Module N_Port3 N_Port4 Fabric-1 Fabric-2 Storage Array-1 Storage Array-2 FIGURE 3 PG2 Port grouping behavior When a dual redundant fabric configuration is used, internal ports (F_Ports) connected to a FC SAN Module can access the same target devices from both of the fabrics. In this case, you must group the external ports (N_Ports) connected to the redundant fabric into a single port group. It is recommended to have paths fail over to the redundant fabric when the primary fabric goes down. Refer to Figure 4. F_Port1 F_Port2 F_Port3 F_Port4 N_Port1 FC SAN PG1 Module N_Port2 Fabric-1 Fabric-2 Storage Array FIGURE 4 Port group 1 (pg1) setup Adding an external port (N_Port) to a port group 1. Connect to the FC SAN Module and log in using an account assigned to the admin role. 2. Enter the ag --pgadd command with the appropriate operands to add an external port (N_Port) to a specific port group. In the following example external port 14 is added to port group 3. Note that if you add more than one external ports, you must separate them with a semicolon. Dell 8/4Gbps FC SAN Module Administrator's Guide 13 53-1001345-01