HP StorageWorks 2/16V Brocade Access Gateway Administrator's Guide - Supportin - Page 20

In Example 3

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1 Failback policy 3. The host establishes a new connection with the fabric. Example: Failback Policy In Example 3, the Brocade Access Gateway N_1 remains disabled because the corresponding F_A1 port is offline. However N_2 comes back online. (See Figure 1-5 for the original failover scenario.) The ports mapped to N_1 (F_1 and F_2) continue to be routed to N_3; the ports originally mapped to N_2 (F_3 and F_4) are disabled, rerouted to N_2, and then enabled. Example 3 Hosts Host_1 Host_2 Host_3 Host_4 Host_5 Host_6 Access Gateway F_1 N_1 F_2 N_2 F_3 F_4 N_3 F_5 N_4 F_6 Edge Switch (Switch_A) F_A1 NPIV enabled F_A2 NPIV enabled Edge Switch (Switch_B) F_B1 NPIV enabled F_B2 NPIV enabled Fabric Host_7 F_7 Host_8 F_8 Figure 1-6 Failback policy behavior Legend Physical connection Mapped online Failover route online Original mapped route (offline) 1-8 Access Gateway Administrator's Guide Publication Number: 53-1000430-01

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1-8
Access Gateway Administrator’s Guide
Publication Number: 53-1000430-01
Failback policy
1
3.
The host establishes a new connection with the fabric.
Example: Failback Policy
In Example 3, the Brocade Access Gateway N_1 remains disabled because the corresponding F_A1
port is offline. However N_2 comes back online. (See
Figure 1-5
for the original failover scenario.)
The ports mapped to N_1 (F_1 and F_2) continue to be routed to N_3; the ports originally mapped to
N_2 (F_3 and F_4) are disabled, rerouted to N_2, and then enabled.
Figure 1-6
Failback policy behavior
F_A2
Hosts
Access Gateway
Edge Switch
Fabric
(Switch_A)
enabled
NPIV
F_4
F_3
F_2
F_1
N_1
F_A1
enabled
NPIV
N_3
F_B1
enabled
NPIV
Host_1
Host_2
Host_3
Host_4
F_5
Host_5
F_6
Host_6
F_7
Host_7
F_8
Host_8
Edge Switch
(Switch_B)
N_4
F_B2
enabled
NPIV
N_2
Legend
Physical connection
Mapped online
Failover route online
Original mapped route
(offline)
Example 3