While operating a cluster, if every single transfer routes fail for a particular virtual interface, a cluster can switch over to the other cluster. With this capability, the system can be recovered, without administrator's interference, by performing switchover within the cluster when detecting failures in the entire transfer route. Cluster fail-over is enabled in the initial setup for duplex transfer route operation in Fast switching mode, NIC switching mode and GS/SURE linkage mode. This function is automatically configured when the cluster definition is defined.
Figure 2.19 Cluster failover due to line fault shows example of fail-over to node B when communication is disabled via both hme0 and hme1 bundled with virtual interface sha0 on node A.
Information
The following is an example of Fast switching mode and this applies to NIC switching mode as well.
Figure 2.19 Cluster failover due to line fault
